Extracting prog: 3m32.1662011s
Minimizing prog: 1h29m48.789303313s
Simplifying prog options: 0s
Extracting C: 38.865805441s
Simplifying C: 11m36.412689821s


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}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program crashed: possible deadlock in __bpf_ringbuf_reserve
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00'}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r0}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, 0x0, 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, 0x0, 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r0 = bpf$PROG_LOAD(0x5, 0x0, 0x0)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r0}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, 0x0, &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r0}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r0}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB, @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], 0x0, 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={0x0, r1}, 0x18)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
extracting C reproducer
testing compiled C program (duration=6m0s, {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$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: possible deadlock in __bpf_ringbuf_reserve
simplifying C reproducer
testing compiled C program (duration=6m0s, {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}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: possible deadlock in __bpf_ringbuf_reserve
testing compiled C program (duration=6m0s, {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}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: possible deadlock in __bpf_ringbuf_reserve
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: possible deadlock in __bpf_ringbuf_reserve
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: possible deadlock in __bpf_ringbuf_reserve
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: possible deadlock in __bpf_ringbuf_reserve
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: possible deadlock in __bpf_ringbuf_reserve
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program crashed: possible deadlock in __bpf_ringbuf_reserve
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program crashed: possible deadlock in __bpf_ringbuf_reserve
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_RINGBUF-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[], 0x48)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000b00)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback=0x26, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={&(0x7f0000000140)='contention_end\x00', r1}, 0x18)

program crashed: possible deadlock in __bpf_ringbuf_reserve
validation run: crashed=true
reproducing took 1h51m13.148078501s
repro crashed as (corrupted=false):
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.1.2294/6793 is trying to acquire lock:
ffffc900052850d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415

but task is already holding lock:
ffffc900051310d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&rb->spinlock);
  lock(&rb->spinlock);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

4 locks held by syz.1.2294/6793:
 #0: ffffffff8cb74848 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_unregister+0x2c/0x930 kernel/tracepoint.c:548
 #1: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #1: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #1: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
 #1: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0xe2/0x3e0 kernel/trace/bpf_trace.c:2324
 #2: ffffc900051310d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415
 #3: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #3: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #3: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
 #3: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0xe2/0x3e0 kernel/trace/bpf_trace.c:2324

stack backtrace:
CPU: 0 PID: 6793 Comm: syz.1.2294 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 __lock_acquire+0x123e/0x7d10 kernel/locking/lockdep.c:-1
 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
 __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415
 ____bpf_ringbuf_reserve kernel/bpf/ringbuf.c:466 [inline]
 bpf_ringbuf_reserve+0x58/0x70 kernel/bpf/ringbuf.c:458
 bpf_prog_fe0ed97373b08409+0x25/0x42
 bpf_dispatcher_nop_func include/linux/bpf.h:1012 [inline]
 __bpf_prog_run include/linux/filter.h:607 [inline]
 bpf_prog_run include/linux/filter.h:614 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline]
 bpf_trace_run2+0x1d5/0x3e0 kernel/trace/bpf_trace.c:2324
 __traceiter_contention_end+0x74/0xa0 include/trace/events/lock.h:122
 trace_contention_end+0x13f/0x190 include/trace/events/lock.h:122
 __pv_queued_spin_lock_slowpath+0x7e8/0x9c0 kernel/locking/qspinlock.c:560
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath+0x43/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x265/0x2f0 kernel/locking/spinlock_debug.c:115
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0xbc/0x100 kernel/locking/spinlock.c:162
 __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415
 ____bpf_ringbuf_reserve kernel/bpf/ringbuf.c:466 [inline]
 bpf_ringbuf_reserve+0x58/0x70 kernel/bpf/ringbuf.c:458
 bpf_prog_fe0ed97373b08409+0x25/0x42
 bpf_dispatcher_nop_func include/linux/bpf.h:1012 [inline]
 __bpf_prog_run include/linux/filter.h:607 [inline]
 bpf_prog_run include/linux/filter.h:614 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline]
 bpf_trace_run2+0x1d5/0x3e0 kernel/trace/bpf_trace.c:2324
 __traceiter_contention_end+0x74/0xa0 include/trace/events/lock.h:122
 trace_contention_end+0x123/0x170 include/trace/events/lock.h:122
 __mutex_lock_common kernel/locking/mutex.c:612 [inline]
 __mutex_lock+0x1a1/0xaf0 kernel/locking/mutex.c:747
 tracepoint_probe_unregister+0x2c/0x930 kernel/tracepoint.c:548
 bpf_raw_tp_link_release+0x5f/0x80 kernel/bpf/syscall.c:3200
 bpf_link_free kernel/bpf/syscall.c:2769 [inline]
 bpf_link_put+0x22a/0x2c0 kernel/bpf/syscall.c:2795
 bpf_link_release+0x37/0x40 kernel/bpf/syscall.c:2804
 __fput+0x22c/0x920 fs/file_table.c:320
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6b0a79acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc73dda1f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ffc73dda2e0 RCX: 00007f6b0a79acb9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000026064 R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b2e120000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6b0aa15fac R14: 00007f6b0aa15fa8 R15: 00007f6b0aa15fa0
 </TASK>

final repro crashed as (corrupted=false):
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.1.2294/6793 is trying to acquire lock:
ffffc900052850d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415

but task is already holding lock:
ffffc900051310d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&rb->spinlock);
  lock(&rb->spinlock);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

4 locks held by syz.1.2294/6793:
 #0: ffffffff8cb74848 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_unregister+0x2c/0x930 kernel/tracepoint.c:548
 #1: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #1: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #1: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
 #1: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0xe2/0x3e0 kernel/trace/bpf_trace.c:2324
 #2: ffffc900051310d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415
 #3: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #3: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #3: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
 #3: ffffffff8cb2d620 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0xe2/0x3e0 kernel/trace/bpf_trace.c:2324

stack backtrace:
CPU: 0 PID: 6793 Comm: syz.1.2294 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 __lock_acquire+0x123e/0x7d10 kernel/locking/lockdep.c:-1
 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
 __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415
 ____bpf_ringbuf_reserve kernel/bpf/ringbuf.c:466 [inline]
 bpf_ringbuf_reserve+0x58/0x70 kernel/bpf/ringbuf.c:458
 bpf_prog_fe0ed97373b08409+0x25/0x42
 bpf_dispatcher_nop_func include/linux/bpf.h:1012 [inline]
 __bpf_prog_run include/linux/filter.h:607 [inline]
 bpf_prog_run include/linux/filter.h:614 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline]
 bpf_trace_run2+0x1d5/0x3e0 kernel/trace/bpf_trace.c:2324
 __traceiter_contention_end+0x74/0xa0 include/trace/events/lock.h:122
 trace_contention_end+0x13f/0x190 include/trace/events/lock.h:122
 __pv_queued_spin_lock_slowpath+0x7e8/0x9c0 kernel/locking/qspinlock.c:560
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath+0x43/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x265/0x2f0 kernel/locking/spinlock_debug.c:115
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0xbc/0x100 kernel/locking/spinlock.c:162
 __bpf_ringbuf_reserve+0x1d2/0x5b0 kernel/bpf/ringbuf.c:415
 ____bpf_ringbuf_reserve kernel/bpf/ringbuf.c:466 [inline]
 bpf_ringbuf_reserve+0x58/0x70 kernel/bpf/ringbuf.c:458
 bpf_prog_fe0ed97373b08409+0x25/0x42
 bpf_dispatcher_nop_func include/linux/bpf.h:1012 [inline]
 __bpf_prog_run include/linux/filter.h:607 [inline]
 bpf_prog_run include/linux/filter.h:614 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline]
 bpf_trace_run2+0x1d5/0x3e0 kernel/trace/bpf_trace.c:2324
 __traceiter_contention_end+0x74/0xa0 include/trace/events/lock.h:122
 trace_contention_end+0x123/0x170 include/trace/events/lock.h:122
 __mutex_lock_common kernel/locking/mutex.c:612 [inline]
 __mutex_lock+0x1a1/0xaf0 kernel/locking/mutex.c:747
 tracepoint_probe_unregister+0x2c/0x930 kernel/tracepoint.c:548
 bpf_raw_tp_link_release+0x5f/0x80 kernel/bpf/syscall.c:3200
 bpf_link_free kernel/bpf/syscall.c:2769 [inline]
 bpf_link_put+0x22a/0x2c0 kernel/bpf/syscall.c:2795
 bpf_link_release+0x37/0x40 kernel/bpf/syscall.c:2804
 __fput+0x22c/0x920 fs/file_table.c:320
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6b0a79acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc73dda1f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ffc73dda2e0 RCX: 00007f6b0a79acb9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000026064 R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b2e120000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6b0aa15fac R14: 00007f6b0aa15fa8 R15: 00007f6b0aa15fa0
 </TASK>