Extracting prog: 7m49.61652702s
Minimizing prog: 2h2m20.65215986s
Simplifying prog options: 15m45.31098271s
Extracting C: 5m9.702274841s
Simplifying C: 0s


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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={0xffffffffffffffff, <r0=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r1 = dup(r0)
write$FUSE_DIRENTPLUS(r1, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r0, @ANYRESHEX=0x0], 0xb0)

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
write$FUSE_DIRENTPLUS(0xffffffffffffffff, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
write$P9_RVERSION(0xffffffffffffffff, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r0 = dup(0xffffffffffffffff)
write$FUSE_DIRENTPLUS(r0, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m23.182182237s, {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}}): pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(0x0, 0x0)
write$P9_RVERSION(0xffffffffffffffff, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r0 = dup(0xffffffffffffffff)
write$FUSE_DIRENTPLUS(r0, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, 0x0, 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, 0x0, 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB, @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, 0x0, &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', 0x0, 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={0xffffffffffffffff, <r0=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r1 = dup(r0)
write$FUSE_DIRENTPLUS(r1, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r0, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, 0x0)

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={0xffffffffffffffff, <r0=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r1 = dup(r0)
write$FUSE_DIRENTPLUS(r1, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r0, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB, @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB, @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
extracting C reproducer
testing compiled C program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
extracting C reproducer
testing compiled C program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program did not crash
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
testing program (duration=6m23.182182237s, {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}}): mkdirat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_DIRENTPLUS-mount$9p_fd
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
pipe2$9p(&(0x7f0000000240)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff}, 0x0)
write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff097b000008003950323030302e4c"], 0x15)
r2 = dup(r1)
write$FUSE_DIRENTPLUS(r2, &(0x7f0000000140)=ANY=[@ANYBLOB="b0", @ANYRES64=r1, @ANYRESHEX=0x0], 0xb0)
mount$9p_fd(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
reproducing took 2h44m11.375464222s
repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4492 Comm: kworker/u5:4 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
Workqueue: hci62 hci_rx_work
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3777 [inline]
 validate_chain kernel/locking/lockdep.c:3798 [inline]
 __lock_acquire+0x1864/0x6634 kernel/locking/lockdep.c:5063
 lock_acquire+0x20c/0x638 kernel/locking/lockdep.c:5676
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb0 kernel/locking/spinlock.c:162
 skb_dequeue+0x34/0x144 net/core/skbuff.c:3422
 hci_rx_work+0x44/0xa70 net/bluetooth/hci_core.c:3967
 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292
 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Bluetooth: hci62: unexpected cc 0x0c03 length: 249 > 1
Bluetooth: hci62: unexpected cc 0x1003 length: 249 > 9
Bluetooth: hci62: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci62: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci62: unexpected cc 0x0c25 length: 249 > 3
Bluetooth: hci62: unexpected cc 0x0c38 length: 249 > 2
Bluetooth: hci61: command 0x041b tx timeout
Bluetooth: hci64: unexpected cc 0x0c03 length: 249 > 1
Bluetooth: hci64: unexpected cc 0x1003 length: 249 > 9
Bluetooth: hci64: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci64: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci64: unexpected cc 0x0c25 length: 249 > 3
Bluetooth: hci64: unexpected cc 0x0c38 length: 249 > 2
Bluetooth: hci63: command 0x0409 tx timeout
Bluetooth: hci60: command 0x0419 tx timeout
Bluetooth: hci63: command 0x041b tx timeout
Bluetooth: hci64: command 0x041b tx timeout
Bluetooth: hci63: command 0x040f tx timeout
Bluetooth: hci64: command 0x040f tx timeout
Bluetooth: hci62: command 0x0419 tx timeout
Bluetooth: hci34: command 0x0406 tx timeout
Bluetooth: hci33: command 0x0406 tx timeout
Bluetooth: hci32: command 0x0406 tx timeout

final repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4492 Comm: kworker/u5:4 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
Workqueue: hci62 hci_rx_work
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3777 [inline]
 validate_chain kernel/locking/lockdep.c:3798 [inline]
 __lock_acquire+0x1864/0x6634 kernel/locking/lockdep.c:5063
 lock_acquire+0x20c/0x638 kernel/locking/lockdep.c:5676
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb0 kernel/locking/spinlock.c:162
 skb_dequeue+0x34/0x144 net/core/skbuff.c:3422
 hci_rx_work+0x44/0xa70 net/bluetooth/hci_core.c:3967
 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292
 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Bluetooth: hci62: unexpected cc 0x0c03 length: 249 > 1
Bluetooth: hci62: unexpected cc 0x1003 length: 249 > 9
Bluetooth: hci62: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci62: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci62: unexpected cc 0x0c25 length: 249 > 3
Bluetooth: hci62: unexpected cc 0x0c38 length: 249 > 2
Bluetooth: hci61: command 0x041b tx timeout
Bluetooth: hci64: unexpected cc 0x0c03 length: 249 > 1
Bluetooth: hci64: unexpected cc 0x1003 length: 249 > 9
Bluetooth: hci64: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci64: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci64: unexpected cc 0x0c25 length: 249 > 3
Bluetooth: hci64: unexpected cc 0x0c38 length: 249 > 2
Bluetooth: hci63: command 0x0409 tx timeout
Bluetooth: hci60: command 0x0419 tx timeout
Bluetooth: hci63: command 0x041b tx timeout
Bluetooth: hci64: command 0x041b tx timeout
Bluetooth: hci63: command 0x040f tx timeout
Bluetooth: hci64: command 0x040f tx timeout
Bluetooth: hci62: command 0x0419 tx timeout
Bluetooth: hci34: command 0x0406 tx timeout
Bluetooth: hci33: command 0x0406 tx timeout
Bluetooth: hci32: command 0x0406 tx timeout