Extracting prog: 8m5.963876371s
Minimizing prog: 1h29m5.440223872s
Simplifying prog options: 15m57.347062829s
Extracting C: 5m12.791258922s
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}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

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}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

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}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat
detailed listing:
executing program 0:
socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {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}}): mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, 0x0, 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, 0x0, 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, 0x0, &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', 0x0, 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, 0x0)

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB, @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB, @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
extracting C reproducer
testing compiled C program (duration=6m19.115744038s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m19.115744038s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
extracting C reproducer
testing compiled C program (duration=6m19.115744038s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m19.115744038s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program did not crash
testing program (duration=6m19.115744038s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
testing program (duration=6m19.115744038s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
testing program (duration=6m19.115744038s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-mknodat-close-socket$nl_route-openat-mount$9p_fd
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
mknodat(0xffffffffffffff9c, &(0x7f0000000140)='./file0\x00', 0x1000, 0xfffffff7)
close(0x3)
socket$nl_route(0x10, 0x3, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000100), 0x2000001, &(0x7f0000000180)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0])

program crashed: BUG: MAX_LOCKDEP_CHAINS too low!
validation run: crashed=true
reproducing took 2h11m2.765223459s
repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 7443 Comm: syz-executor Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xf88/0x2f44 kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x368 kernel/locking/lockdep.c:5868
 __raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline]
 _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:158
 spin_lock include/linux/spinlock.h:342 [inline]
 inode_sb_list_del fs/inode.c:665 [inline]
 evict+0x15c/0x740 fs/inode.c:826
 iput_final fs/inode.c:1960 [inline]
 iput+0x858/0xb90 fs/inode.c:2009
 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476
 __dentry_kill+0x170/0x5fc fs/dcache.c:718
 finish_dput+0xe4/0x458 fs/dcache.c:927
 dput+0x184/0x188 fs/dcache.c:976
 __simple_recursive_removal+0x3d0/0x428 fs/libfs.c:635
 simple_recursive_removal+0x2c/0x3c fs/libfs.c:647
 debugfs_remove+0x60/0x88 fs/debugfs/inode.c:781
 nsim_dev_reload_destroy+0x60/0x208 drivers/net/netdevsim/dev.c:1777
 nsim_drv_remove+0x5c/0x10c drivers/net/netdevsim/dev.c:1800
 nsim_bus_remove+0x20/0x30 drivers/net/netdevsim/bus.c:427
 device_remove+0xc4/0x134 drivers/base/dd.c:619
 __device_release_driver drivers/base/dd.c:1352 [inline]
 device_release_driver_internal+0x124/0x208 drivers/base/dd.c:1375
 device_release_driver+0x28/0x38 drivers/base/dd.c:1398
 bus_remove_device+0x2d0/0x3f8 drivers/base/bus.c:657
 device_del+0x3f0/0x710 drivers/base/core.c:3895
 device_unregister+0x2c/0xf0 drivers/base/core.c:3936
 nsim_bus_dev_del+0x60/0x88 drivers/net/netdevsim/bus.c:491
 del_device_store+0x248/0x2d0 drivers/net/netdevsim/bus.c:244
 bus_attr_store+0x80/0xa4 drivers/base/bus.c:172
 sysfs_kf_write+0xe0/0x108 fs/sysfs/file.c:142
 kernfs_fop_write_iter+0x264/0x3c0 fs/kernfs/file.c:352
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x52c/0xa14 fs/read_write.c:688
 ksys_write+0x12c/0x224 fs/read_write.c:740
 __do_sys_write fs/read_write.c:751 [inline]
 __se_sys_write fs/read_write.c:748 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:748
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
netdevsim netdevsim9 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim0: renamed from eth0
8021q: adding VLAN 0 to HW filter on device netdevsim0
netdevsim netdevsim9 netdevsim1: renamed from eth1
8021q: adding VLAN 0 to HW filter on device netdevsim1
netdevsim netdevsim9 netdevsim2: renamed from eth2
8021q: adding VLAN 0 to HW filter on device netdevsim2
netdevsim netdevsim9 netdevsim3: renamed from eth3
8021q: adding VLAN 0 to HW filter on device netdevsim3
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device batadv0
veth0_vlan: entered promiscuous mode
veth1_vlan: entered promiscuous mode
veth0_macvtap: entered promiscuous mode
veth1_macvtap: entered promiscuous mode
batman_adv: batadv0: Interface activated: batadv_slave_0
batman_adv: batadv0: Interface activated: batadv_slave_1
ieee80211 phy139: Selected rate control algorithm 'minstrel_ht'
ieee80211 phy140: Selected rate control algorithm 'minstrel_ht'

final repro crashed as (corrupted=false):
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 7443 Comm: syz-executor Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xf88/0x2f44 kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x368 kernel/locking/lockdep.c:5868
 __raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline]
 _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:158
 spin_lock include/linux/spinlock.h:342 [inline]
 inode_sb_list_del fs/inode.c:665 [inline]
 evict+0x15c/0x740 fs/inode.c:826
 iput_final fs/inode.c:1960 [inline]
 iput+0x858/0xb90 fs/inode.c:2009
 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476
 __dentry_kill+0x170/0x5fc fs/dcache.c:718
 finish_dput+0xe4/0x458 fs/dcache.c:927
 dput+0x184/0x188 fs/dcache.c:976
 __simple_recursive_removal+0x3d0/0x428 fs/libfs.c:635
 simple_recursive_removal+0x2c/0x3c fs/libfs.c:647
 debugfs_remove+0x60/0x88 fs/debugfs/inode.c:781
 nsim_dev_reload_destroy+0x60/0x208 drivers/net/netdevsim/dev.c:1777
 nsim_drv_remove+0x5c/0x10c drivers/net/netdevsim/dev.c:1800
 nsim_bus_remove+0x20/0x30 drivers/net/netdevsim/bus.c:427
 device_remove+0xc4/0x134 drivers/base/dd.c:619
 __device_release_driver drivers/base/dd.c:1352 [inline]
 device_release_driver_internal+0x124/0x208 drivers/base/dd.c:1375
 device_release_driver+0x28/0x38 drivers/base/dd.c:1398
 bus_remove_device+0x2d0/0x3f8 drivers/base/bus.c:657
 device_del+0x3f0/0x710 drivers/base/core.c:3895
 device_unregister+0x2c/0xf0 drivers/base/core.c:3936
 nsim_bus_dev_del+0x60/0x88 drivers/net/netdevsim/bus.c:491
 del_device_store+0x248/0x2d0 drivers/net/netdevsim/bus.c:244
 bus_attr_store+0x80/0xa4 drivers/base/bus.c:172
 sysfs_kf_write+0xe0/0x108 fs/sysfs/file.c:142
 kernfs_fop_write_iter+0x264/0x3c0 fs/kernfs/file.c:352
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x52c/0xa14 fs/read_write.c:688
 ksys_write+0x12c/0x224 fs/read_write.c:740
 __do_sys_write fs/read_write.c:751 [inline]
 __se_sys_write fs/read_write.c:748 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:748
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
netdevsim netdevsim9 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim0: renamed from eth0
8021q: adding VLAN 0 to HW filter on device netdevsim0
netdevsim netdevsim9 netdevsim1: renamed from eth1
8021q: adding VLAN 0 to HW filter on device netdevsim1
netdevsim netdevsim9 netdevsim2: renamed from eth2
8021q: adding VLAN 0 to HW filter on device netdevsim2
netdevsim netdevsim9 netdevsim3: renamed from eth3
8021q: adding VLAN 0 to HW filter on device netdevsim3
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
8021q: adding VLAN 0 to HW filter on device batadv0
veth0_vlan: entered promiscuous mode
veth1_vlan: entered promiscuous mode
veth0_macvtap: entered promiscuous mode
veth1_macvtap: entered promiscuous mode
batman_adv: batadv0: Interface activated: batadv_slave_0
batman_adv: batadv0: Interface activated: batadv_slave_1
ieee80211 phy139: Selected rate control algorithm 'minstrel_ht'
ieee80211 phy140: Selected rate control algorithm 'minstrel_ht'