Extracting prog: 2m10.143134034s Minimizing prog: 18m37.626102615s Simplifying prog options: 0s Extracting C: 41.609897109s Simplifying C: 16m26.698733122s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data single: successfully extracted reproducer found reproducer with 5 syscalls minimizing guilty program testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00'}) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: socket$inet_tcp(0x2, 0x1, 0x0) r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r0, 0x0, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={0xffffffffffffffff, r1, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r0, r1, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, 0x0, &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], 0x0, 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, 0x0, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00'}) bpf$BPF_LINK_CREATE_XDP(0x1c, 0x0, 0x0) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program did not crash testing program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=47.5240209s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data simplifying C reproducer testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program did not crash testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program did not crash testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing compiled C program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet program crashed: BUG: Bad page state in skb_pp_cow_data testing program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data validation run: crashed=true testing program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data validation run: crashed=true testing program (duration=47.5240209s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x6, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="180200002343ffff0000000000000000850000004100000095"], &(0x7f00000000c0)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x64}, 0x94) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000180)={'syz_tun\x00', 0x0}) bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={r1, r2, 0x25, 0x4, @void}, 0x10) syz_emit_ethernet(0xfdef, &(0x7f0000000000)=ANY=[], 0x0) program crashed: BUG: Bad page state in skb_pp_cow_data validation run: crashed=true reproducing took 41m17.923108183s repro crashed as (corrupted=false): BUG: Bad page state in process syz.0.17 pfn:781db page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880781db070 pfn:0x781db flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff8880781db070 3fffffffffffffff 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826352464, free_ts 122568710747 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmems net/core/page_pool.c:670 [inline] page_pool_alloc_frag_netmem+0x421/0x9b0 net/core/page_pool.c:1079 page_pool_alloc_netmem include/net/page_pool/helpers.h:131 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xcb7/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db1e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db1e770 pfn:0x7db1e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db1e770 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826342554, free_ts 122568721294 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7da59 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807da59f60 pfn:0x7da59 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807da59f60 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826333157, free_ts 122568760587 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7dacf page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807dacf0c0 pfn:0x7dacf flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807dacf0c0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826323588, free_ts 122568771300 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:62155 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888062155fc0 pfn:0x62155 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff888062155fc0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826314179, free_ts 122569374954 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db27 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db27ec0 pfn:0x7db27 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db27ec0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826304907, free_ts 122569414166 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db2d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db2ddc0 pfn:0x7db2d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db2ddc0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826295497, free_ts 122569506525 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db2b page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db2bcc0 pfn:0x7db2b flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db2bcc0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826285917, free_ts 122569547224 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db3e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db3ebc0 pfn:0x7db3e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db3ebc0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826276453, free_ts 122569577710 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7a09f page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807a09f500 pfn:0x7a09f flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807a09f500 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826267152, free_ts 122569633604 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:62167 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888062167070 pfn:0x62167 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff888062167070 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826257954, free_ts 122569813890 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db1a page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db1acb0 pfn:0x7db1a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db1acb0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826248663, free_ts 122569823508 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 final repro crashed as (corrupted=false): BUG: Bad page state in process syz.0.17 pfn:781db page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880781db070 pfn:0x781db flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff8880781db070 3fffffffffffffff 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826352464, free_ts 122568710747 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmems net/core/page_pool.c:670 [inline] page_pool_alloc_frag_netmem+0x421/0x9b0 net/core/page_pool.c:1079 page_pool_alloc_netmem include/net/page_pool/helpers.h:131 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xcb7/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db1e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db1e770 pfn:0x7db1e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db1e770 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826342554, free_ts 122568721294 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7da59 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807da59f60 pfn:0x7da59 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807da59f60 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826333157, free_ts 122568760587 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7dacf page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807dacf0c0 pfn:0x7dacf flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807dacf0c0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826323588, free_ts 122568771300 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:62155 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888062155fc0 pfn:0x62155 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff888062155fc0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826314179, free_ts 122569374954 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db27 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db27ec0 pfn:0x7db27 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db27ec0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826304907, free_ts 122569414166 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db2d page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db2ddc0 pfn:0x7db2d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db2ddc0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826295497, free_ts 122569506525 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db2b page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db2bcc0 pfn:0x7db2b flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db2bcc0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826285917, free_ts 122569547224 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db3e page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db3ebc0 pfn:0x7db3e flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db3ebc0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826276453, free_ts 122569577710 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7a09f page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807a09f500 pfn:0x7a09f flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807a09f500 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826267152, free_ts 122569633604 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:62167 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888062167070 pfn:0x62167 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff888062167070 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826257954, free_ts 122569813890 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0 BUG: Bad page state in process syz.0.17 pfn:7db1a page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db1acb0 pfn:0x7db1a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000 raw: ffff88807db1acb0 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826248663, free_ts 122569823508 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853 prep_new_page mm/page_alloc.c:1861 [inline] get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221 __alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255 alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175 alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline] __page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619 page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline] page_pool_alloc include/net/page_pool/helpers.h:167 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline] skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982 netif_skb_check_for_xdp net/core/dev.c:5558 [inline] netif_receive_generic_xdp net/core/dev.c:5599 [inline] do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5777 tgid 5777 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415 kmalloc_noprof include/linux/slab.h:950 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline] netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822 notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992 do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159 rtnl_changelink net/core/rtnetlink.c:3841 [inline] __rtnl_newlink net/core/rtnetlink.c:4014 [inline] rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x672/0x710 net/socket.c:2265 Modules linked in: CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full) Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 bad_page+0x17f/0x1c0 mm/page_alloc.c:632 free_page_is_bad mm/page_alloc.c:1076 [inline] __free_pages_prepare mm/page_alloc.c:1388 [inline] __free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938 bpf_xdp_shrink_data net/core/filter.c:4220 [inline] bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244 ____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline] bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259 bpf_prog_5d7dc57dfd7f985a+0x1e/0x24 __bpf_prog_run include/linux/filter.h:722 [inline] bpf_prog_run_xdp include/net/xdp.h:696 [inline] bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489 netif_receive_generic_xdp net/core/dev.c:5605 [inline] do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667 tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8e39d5d68e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8 RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0