Extracting prog: 36.323761994s Minimizing prog: 38m15.065387679s Simplifying prog options: 0s Extracting C: 1m0.171797885s Simplifying C: 20m14.81615351s extracting reproducer from 69 programs first checking the prog from the crash report 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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-bpf$PROG_LOAD-socketpair$unix-setsockopt$sock_attach_bpf-sendmsg$inet-mount_setattr-socket$nl_netfilter-sendmsg$IPSET_CMD_CREATE detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000000)={0x3, &(0x7f0000000200)=[{0x19, '\x00', @data=0x4e1, 0x2}, {0x13, '\x00', @data, 0x80}, {0xb, '\x00', @data=0x4, 0x4}]}) r5 = bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x1, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x8, '\x00', 0x0, @fallback=0x2f, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$sock_attach_bpf(r6, 0x1, 0x32, &(0x7f0000000180)=r5, 0x4) sendmsg$inet(r7, &(0x7f0000000100)={0x0, 0x0, 0x0}, 0x20000000) mount_setattr(0xffffffffffffffff, 0x0, 0x8000, &(0x7f00000001c0)={0x70, 0xf2}, 0x20) r8 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r8, &(0x7f0000000040)={0x0, 0x0, &(0x7f00000044c0)={&(0x7f0000000340)=ANY=[@ANYBLOB="58000000020601020000000000000000000000000c000780080012400006000012000300686173683ad819f618c96131e9405a4b992b3007816e65742c706f7274000000050005000200000005000400000000000900020073797a31000000000500010007000000ed4938e63150f15b939dbe4992c9e5e3be72ea39c3dfd24f48d0c307a6d0f33f8be7de27d925398edb333f21f83aae9f8068c33560a252e7c9d4bfb9ef6f9d1e"], 0x58}}, 0x0) program crashed: KASAN: use-after-free Read in dvb_device_open single: successfully extracted reproducer found reproducer with 23 syscalls minimizing guilty program testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-bpf$PROG_LOAD-socketpair$unix-setsockopt$sock_attach_bpf-sendmsg$inet-mount_setattr-socket$nl_netfilter detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000000)={0x3, &(0x7f0000000200)=[{0x19, '\x00', @data=0x4e1, 0x2}, {0x13, '\x00', @data, 0x80}, {0xb, '\x00', @data=0x4, 0x4}]}) r5 = bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x1, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x8, '\x00', 0x0, @fallback=0x2f, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$sock_attach_bpf(r6, 0x1, 0x32, &(0x7f0000000180)=r5, 0x4) sendmsg$inet(r7, &(0x7f0000000100)={0x0, 0x0, 0x0}, 0x20000000) mount_setattr(0xffffffffffffffff, 0x0, 0x8000, &(0x7f00000001c0)={0x70, 0xf2}, 0x20) socket$nl_netfilter(0x10, 0x3, 0xc) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-bpf$PROG_LOAD-socketpair$unix-setsockopt$sock_attach_bpf-sendmsg$inet-mount_setattr detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000000)={0x3, &(0x7f0000000200)=[{0x19, '\x00', @data=0x4e1, 0x2}, {0x13, '\x00', @data, 0x80}, {0xb, '\x00', @data=0x4, 0x4}]}) r5 = bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x1, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x8, '\x00', 0x0, @fallback=0x2f, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$sock_attach_bpf(r6, 0x1, 0x32, &(0x7f0000000180)=r5, 0x4) sendmsg$inet(r7, &(0x7f0000000100)={0x0, 0x0, 0x0}, 0x20000000) mount_setattr(0xffffffffffffffff, 0x0, 0x8000, &(0x7f00000001c0)={0x70, 0xf2}, 0x20) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-bpf$PROG_LOAD-socketpair$unix-setsockopt$sock_attach_bpf-sendmsg$inet detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000000)={0x3, &(0x7f0000000200)=[{0x19, '\x00', @data=0x4e1, 0x2}, {0x13, '\x00', @data, 0x80}, {0xb, '\x00', @data=0x4, 0x4}]}) r5 = bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x1, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x8, '\x00', 0x0, @fallback=0x2f, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$sock_attach_bpf(r6, 0x1, 0x32, &(0x7f0000000180)=r5, 0x4) sendmsg$inet(r7, &(0x7f0000000100)={0x0, 0x0, 0x0}, 0x20000000) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-bpf$PROG_LOAD-socketpair$unix-setsockopt$sock_attach_bpf detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000000)={0x3, &(0x7f0000000200)=[{0x19, '\x00', @data=0x4e1, 0x2}, {0x13, '\x00', @data, 0x80}, {0xb, '\x00', @data=0x4, 0x4}]}) r5 = bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x1, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x8, '\x00', 0x0, @fallback=0x2f, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) setsockopt$sock_attach_bpf(r6, 0x1, 0x32, &(0x7f0000000180)=r5, 0x4) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-bpf$PROG_LOAD-socketpair$unix detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000000)={0x3, &(0x7f0000000200)=[{0x19, '\x00', @data=0x4e1, 0x2}, {0x13, '\x00', @data, 0x80}, {0xb, '\x00', @data=0x4, 0x4}]}) bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x1, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x8, '\x00', 0x0, @fallback=0x2f, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-bpf$PROG_LOAD detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000000)={0x3, &(0x7f0000000200)=[{0x19, '\x00', @data=0x4e1, 0x2}, {0x13, '\x00', @data, 0x80}, {0xb, '\x00', @data=0x4, 0x4}]}) bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x1, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x8, '\x00', 0x0, @fallback=0x2f, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000000)={0x3, &(0x7f0000000200)=[{0x19, '\x00', @data=0x4e1, 0x2}, {0x13, '\x00', @data, 0x80}, {0xb, '\x00', @data=0x4, 0x4}]}) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-readv detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) r3 = socket$can_raw(0x1d, 0x3, 0x1) readv(r3, &(0x7f00000004c0)=[{&(0x7f0000000040)=""/8, 0x8}], 0x1) program did not crash testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-socket$can_raw-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) socket$can_raw(0x1d, 0x3, 0x1) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-timer_settime-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-mprotect-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-fcntl$lock-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-timer_create-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-mmap-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r1], 0x0}, 0x90) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-bpf$MAP_CREATE-timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) bpf$MAP_CREATE(0x0, &(0x7f0000000640)=ANY=[@ANYBLOB="17000000000000000400000003"], 0x48) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r1, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-bpf$PROG_LOAD_XDP-timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000004000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0, 0x0, 0x1b, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0xfffffffe}, 0x90) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r1, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-bpf$ENABLE_STATS-timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) bpf$ENABLE_STATS(0x20, 0x0, 0x0) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r1, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-ioctl$VHOST_VDPA_SET_GROUP_ASID-timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) ioctl$VHOST_VDPA_SET_GROUP_ASID(r0, 0x4008af7c, &(0x7f0000000100)={0x1, 0x7}) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r1, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER-timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x9}}, './file0\x00'}) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, 0x0, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, 0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, 0x0) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, 0x0, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(0x0, 0x0, 0x2) program did not crash extracting C reproducer testing compiled C program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open simplifying C reproducer testing compiled C program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true 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}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open validation run: crashed=true testing program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open validation run: crashed=true testing program (duration=45.185859367s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-mprotect-timer_settime-mmap-syz_open_dev$dvb_frontend detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open validation run: crashed=true reproducing took 1h4m1.11026372s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in dvb_device_open+0xc5/0x360 drivers/media/dvb-core/dvbdev.c:109 Read of size 8 at addr ffff888028488e18 by task syz.0.19/4354 CPU: 0 PID: 4354 Comm: syz.0.19 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106 print_address_description+0x60/0x2d0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xdf/0x130 mm/kasan/report.c:451 dvb_device_open+0xc5/0x360 drivers/media/dvb-core/dvbdev.c:109 chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7f7/0xf90 fs/open.c:826 do_open fs/namei.c:3616 [inline] path_openat+0x2718/0x2fb0 fs/namei.c:3750 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7ff665d5768e 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:00007ffdccbb07a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00005555700aa500 RCX: 00007ff665d5768e RDX: 0000000000000002 RSI: 00007ffdccbb0880 RDI: ffffffffffffff9c RBP: 00007ffdccbb0880 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007ff66600ffac R14: 00007ff66600ffa0 R15: 00007ff66600ffa0 Allocated by task 1: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] __kasan_kmalloc+0xaf/0xe0 mm/kasan/common.c:522 kmalloc include/linux/slab.h:607 [inline] kzalloc include/linux/slab.h:738 [inline] dvb_register_device+0x300/0x1dc0 drivers/media/dvb-core/dvbdev.c:488 dvb_register_frontend+0x629/0x900 drivers/media/dvb-core/dvb_frontend.c:3034 vidtv_bridge_dvb_init drivers/media/test-drivers/vidtv/vidtv_bridge.c:438 [inline] vidtv_bridge_probe+0x9c1/0xf30 drivers/media/test-drivers/vidtv/vidtv_bridge.c:510 platform_probe+0x137/0x1c0 drivers/base/platform.c:1391 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x276/0xc70 drivers/base/dd.c:595 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775 driver_probe_device+0x4f/0x420 drivers/base/dd.c:805 __driver_attach+0x45d/0x660 drivers/base/dd.c:1184 bus_for_each_dev+0x182/0x1f0 drivers/base/bus.c:303 bus_add_driver+0x324/0x5d0 drivers/base/bus.c:620 driver_register+0x32d/0x430 drivers/base/driver.c:240 vidtv_bridge_init+0x39/0x70 drivers/media/test-drivers/vidtv/vidtv_bridge.c:602 do_one_initcall+0x272/0x730 init/main.c:1315 do_initcall_level+0x13d/0x1f0 init/main.c:1388 do_initcalls+0x4b/0x90 init/main.c:1404 kernel_init_freeable+0x3d5/0x560 init/main.c:1628 kernel_init+0x19/0x1b0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Freed by task 4353: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1710 [inline] slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736 slab_free mm/slub.c:3504 [inline] kfree+0xef/0x2a0 mm/slub.c:4564 dvb_free_device drivers/media/dvb-core/dvbdev.c:635 [inline] kref_put include/linux/kref.h:65 [inline] dvb_device_put drivers/media/dvb-core/dvbdev.c:650 [inline] dvb_device_open+0x2d2/0x360 drivers/media/dvb-core/dvbdev.c:123 chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7f7/0xf90 fs/open.c:826 do_open fs/namei.c:3616 [inline] path_openat+0x2718/0x2fb0 fs/namei.c:3750 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 The buggy address belongs to the object at ffff888028488e00 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 24 bytes inside of 256-byte region [ffff888028488e00, ffff888028488f00) The buggy address belongs to the page: page:ffffea0000a12200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28488 head:ffffea0000a12200 order:1 compound_mapcount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea0000a8a400 0000000400000003 ffff888016c41b40 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, ts 20491897149, free_ts 0 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x24f6/0x2670 mm/page_alloc.c:4192 __alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501 alloc_page_interleave+0x24/0x1e0 mm/mempolicy.c:2031 alloc_slab_page mm/slub.c:1780 [inline] allocate_slab mm/slub.c:1917 [inline] new_slab+0xc0/0x4b0 mm/slub.c:1980 ___slab_alloc+0x807/0xdd0 mm/slub.c:3013 __slab_alloc mm/slub.c:3100 [inline] slab_alloc_node mm/slub.c:3191 [inline] __kmalloc_node+0x142/0x3a0 mm/slub.c:4456 kmalloc_node include/linux/slab.h:630 [inline] kvmalloc_node+0x84/0x130 mm/util.c:619 kvmalloc include/linux/mm.h:816 [inline] kvzalloc include/linux/mm.h:824 [inline] v4l2_ctrl_new+0x70f/0x1310 drivers/media/v4l2-core/v4l2-ctrls-core.c:1306 v4l2_ctrl_new_std+0x247/0x300 drivers/media/v4l2-core/v4l2-ctrls-core.c:1429 handler_new_ref+0x14f/0x8d0 drivers/media/v4l2-core/v4l2-ctrls-core.c:1098 v4l2_ctrl_add_handler+0x197/0x280 drivers/media/v4l2-core/v4l2-ctrls-core.c:1573 vivid_create_controls+0x2932/0x3380 drivers/media/test-drivers/vivid/vivid-ctrls.c:1921 vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:1860 [inline] vivid_probe+0x39ff/0x6240 drivers/media/test-drivers/vivid/vivid-core.c:2031 platform_probe+0x137/0x1c0 drivers/base/platform.c:1391 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x276/0xc70 drivers/base/dd.c:595 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775 page_owner free stack trace missing Memory state around the buggy address: ffff888028488d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888028488d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888028488e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888028488e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888028488f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in dvb_device_open+0xc5/0x360 drivers/media/dvb-core/dvbdev.c:109 Read of size 8 at addr ffff888028488e18 by task syz.0.19/4354 CPU: 0 PID: 4354 Comm: syz.0.19 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106 print_address_description+0x60/0x2d0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xdf/0x130 mm/kasan/report.c:451 dvb_device_open+0xc5/0x360 drivers/media/dvb-core/dvbdev.c:109 chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7f7/0xf90 fs/open.c:826 do_open fs/namei.c:3616 [inline] path_openat+0x2718/0x2fb0 fs/namei.c:3750 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7ff665d5768e 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:00007ffdccbb07a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00005555700aa500 RCX: 00007ff665d5768e RDX: 0000000000000002 RSI: 00007ffdccbb0880 RDI: ffffffffffffff9c RBP: 00007ffdccbb0880 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007ff66600ffac R14: 00007ff66600ffa0 R15: 00007ff66600ffa0 Allocated by task 1: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] __kasan_kmalloc+0xaf/0xe0 mm/kasan/common.c:522 kmalloc include/linux/slab.h:607 [inline] kzalloc include/linux/slab.h:738 [inline] dvb_register_device+0x300/0x1dc0 drivers/media/dvb-core/dvbdev.c:488 dvb_register_frontend+0x629/0x900 drivers/media/dvb-core/dvb_frontend.c:3034 vidtv_bridge_dvb_init drivers/media/test-drivers/vidtv/vidtv_bridge.c:438 [inline] vidtv_bridge_probe+0x9c1/0xf30 drivers/media/test-drivers/vidtv/vidtv_bridge.c:510 platform_probe+0x137/0x1c0 drivers/base/platform.c:1391 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x276/0xc70 drivers/base/dd.c:595 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775 driver_probe_device+0x4f/0x420 drivers/base/dd.c:805 __driver_attach+0x45d/0x660 drivers/base/dd.c:1184 bus_for_each_dev+0x182/0x1f0 drivers/base/bus.c:303 bus_add_driver+0x324/0x5d0 drivers/base/bus.c:620 driver_register+0x32d/0x430 drivers/base/driver.c:240 vidtv_bridge_init+0x39/0x70 drivers/media/test-drivers/vidtv/vidtv_bridge.c:602 do_one_initcall+0x272/0x730 init/main.c:1315 do_initcall_level+0x13d/0x1f0 init/main.c:1388 do_initcalls+0x4b/0x90 init/main.c:1404 kernel_init_freeable+0x3d5/0x560 init/main.c:1628 kernel_init+0x19/0x1b0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Freed by task 4353: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1710 [inline] slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736 slab_free mm/slub.c:3504 [inline] kfree+0xef/0x2a0 mm/slub.c:4564 dvb_free_device drivers/media/dvb-core/dvbdev.c:635 [inline] kref_put include/linux/kref.h:65 [inline] dvb_device_put drivers/media/dvb-core/dvbdev.c:650 [inline] dvb_device_open+0x2d2/0x360 drivers/media/dvb-core/dvbdev.c:123 chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7f7/0xf90 fs/open.c:826 do_open fs/namei.c:3616 [inline] path_openat+0x2718/0x2fb0 fs/namei.c:3750 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 The buggy address belongs to the object at ffff888028488e00 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 24 bytes inside of 256-byte region [ffff888028488e00, ffff888028488f00) The buggy address belongs to the page: page:ffffea0000a12200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28488 head:ffffea0000a12200 order:1 compound_mapcount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea0000a8a400 0000000400000003 ffff888016c41b40 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, ts 20491897149, free_ts 0 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x24f6/0x2670 mm/page_alloc.c:4192 __alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501 alloc_page_interleave+0x24/0x1e0 mm/mempolicy.c:2031 alloc_slab_page mm/slub.c:1780 [inline] allocate_slab mm/slub.c:1917 [inline] new_slab+0xc0/0x4b0 mm/slub.c:1980 ___slab_alloc+0x807/0xdd0 mm/slub.c:3013 __slab_alloc mm/slub.c:3100 [inline] slab_alloc_node mm/slub.c:3191 [inline] __kmalloc_node+0x142/0x3a0 mm/slub.c:4456 kmalloc_node include/linux/slab.h:630 [inline] kvmalloc_node+0x84/0x130 mm/util.c:619 kvmalloc include/linux/mm.h:816 [inline] kvzalloc include/linux/mm.h:824 [inline] v4l2_ctrl_new+0x70f/0x1310 drivers/media/v4l2-core/v4l2-ctrls-core.c:1306 v4l2_ctrl_new_std+0x247/0x300 drivers/media/v4l2-core/v4l2-ctrls-core.c:1429 handler_new_ref+0x14f/0x8d0 drivers/media/v4l2-core/v4l2-ctrls-core.c:1098 v4l2_ctrl_add_handler+0x197/0x280 drivers/media/v4l2-core/v4l2-ctrls-core.c:1573 vivid_create_controls+0x2932/0x3380 drivers/media/test-drivers/vivid/vivid-ctrls.c:1921 vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:1860 [inline] vivid_probe+0x39ff/0x6240 drivers/media/test-drivers/vivid/vivid-core.c:2031 platform_probe+0x137/0x1c0 drivers/base/platform.c:1391 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x276/0xc70 drivers/base/dd.c:595 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775 page_owner free stack trace missing Memory state around the buggy address: ffff888028488d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888028488d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888028488e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888028488e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888028488f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================