Extracting prog: 4m22.93233281s
Minimizing prog: 1h41m51.356895298s
Simplifying prog options: 16m6.082805203s
Extracting C: 4m14.118647252s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
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}}): quotactl$Q_SYNC-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd-write$P9_RVERSION-write$P9_RATTACH
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, <r2=>0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r3=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r3}})
write$P9_RVERSION(r2, &(0x7f00000002c0)={0x13, 0x65, 0xffff, 0x2000, 0x6, '9P2000'}, 0x13)
write$P9_RATTACH(r2, &(0x7f0000000080)={0x14, 0x69, 0x0, {0x80}}, 0x14)

program crashed: INFO: task hung in __iterate_supers
single: successfully extracted reproducer
found reproducer with 9 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}}): quotactl$Q_SYNC-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd-write$P9_RVERSION
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, <r2=>0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r3=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r3}})
write$P9_RVERSION(r2, &(0x7f00000002c0)={0x13, 0x65, 0xffff, 0x2000, 0x6, '9P2000'}, 0x13)

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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}}): quotactl$Q_SYNC-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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}}): quotactl$Q_SYNC-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, 0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)

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}}): quotactl$Q_SYNC-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mount$9p_fd
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

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}}): quotactl$Q_SYNC-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}})

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}}): quotactl$Q_SYNC-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r1=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {}, 0x2c, {'wfdno', 0x3d, r1}})

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}}): quotactl$Q_SYNC-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
pipe2$9p(&(0x7f0000000000)={<r0=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r1=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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}}): quotactl$Q_SYNC-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
quotactl$Q_SYNC(0xffffffff80000100, 0x0, 0x0, 0x0)
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r0=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r1=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})

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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, 0x0)
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x0, 0x0})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(0x0, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r1=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {}, 0x2c, {'wfdno', 0x3d, r1}})

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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}})

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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, 0x0, &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', 0x0, 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, 0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, 0x0)

program did not crash
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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
extracting 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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

program did not crash
testing 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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
testing 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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
testing 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}}): seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-pipe2$9p-pipe2$9p-mkdirat-mount$9p_fd
detailed listing:
executing program 0:
r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x72, 0x0, 0x7fff0000}]})
close_range(r0, 0xffffffffffffffff, 0x0)
pipe2$9p(&(0x7f0000000000)={<r1=>0x0, 0x0}, 0x0)
pipe2$9p(&(0x7f0000000180)={0x0, <r2=>0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt\x00', 0x1ff)
mount$9p_fd(0x0, &(0x7f0000000200)='./mnt\x00', &(0x7f0000000240), 0x0, &(0x7f0000000280)={'trans=fd,', {'rfdno', 0x3d, r1}, 0x2c, {'wfdno', 0x3d, r2}})

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
reproducing took 2h25m19.207618056s
repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5041 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3899 [inline]
 validate_chain kernel/locking/lockdep.c:3920 [inline]
 __lock_acquire+0xed4/0x2b08 kernel/locking/lockdep.c:5288
 lock_acquire+0x13c/0x320 kernel/locking/lockdep.c:5942
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:155 [inline]
 _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:181
 debug_object_activate+0x90/0x240 lib/debugobjects.c:873
 debug_rcu_head_queue kernel/rcu/rcu.h:245 [inline]
 __call_rcu_common kernel/rcu/tree.c:3166 [inline]
 call_rcu+0x54/0x634 kernel/rcu/tree.c:3301
 keypair_free_kref drivers/net/wireguard/noise.c:128 [inline]
 kref_put include/linux/kref.h:65 [inline]
 wg_noise_keypair_put+0xdc/0x2a4 drivers/net/wireguard/noise.c:139
 add_new_keypair drivers/net/wireguard/noise.c:248 [inline]
 wg_noise_handshake_begin_session+0x4b8/0x958 drivers/net/wireguard/noise.c:845
 wg_packet_send_handshake_response+0x108/0x264 drivers/net/wireguard/send.c:96
 wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline]
 wg_packet_handshake_receive_worker+0x570/0xcf8 drivers/net/wireguard/receive.c:213
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854

final repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5041 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3899 [inline]
 validate_chain kernel/locking/lockdep.c:3920 [inline]
 __lock_acquire+0xed4/0x2b08 kernel/locking/lockdep.c:5288
 lock_acquire+0x13c/0x320 kernel/locking/lockdep.c:5942
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:155 [inline]
 _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:181
 debug_object_activate+0x90/0x240 lib/debugobjects.c:873
 debug_rcu_head_queue kernel/rcu/rcu.h:245 [inline]
 __call_rcu_common kernel/rcu/tree.c:3166 [inline]
 call_rcu+0x54/0x634 kernel/rcu/tree.c:3301
 keypair_free_kref drivers/net/wireguard/noise.c:128 [inline]
 kref_put include/linux/kref.h:65 [inline]
 wg_noise_keypair_put+0xdc/0x2a4 drivers/net/wireguard/noise.c:139
 add_new_keypair drivers/net/wireguard/noise.c:248 [inline]
 wg_noise_handshake_begin_session+0x4b8/0x958 drivers/net/wireguard/noise.c:845
 wg_packet_send_handshake_response+0x108/0x264 drivers/net/wireguard/send.c:96
 wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline]
 wg_packet_handshake_receive_worker+0x570/0xcf8 drivers/net/wireguard/receive.c:213
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854