Extracting prog: 54.267997521s Minimizing prog: 11m41.440490391s Simplifying prog options: 0s Extracting C: 33.865887723s Simplifying C: 6m12.109488304s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 45s testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-open$dir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) open$dir(0x0, 0x804c0, 0x80) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: single: successfully extracted reproducer found reproducer with 8 syscalls minimizing guilty program testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-open$dir-close-openat$thread_pidfd detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) open$dir(0x0, 0x804c0, 0x80) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-open$dir-close-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) open$dir(0x0, 0x804c0, 0x80) close(r0) (async) fchdir(r1) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-open$dir-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) open$dir(0x0, 0x804c0, 0x80) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) fchdir(0xffffffffffffffff) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(0xffffffffffffffff) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: close(0xffffffffffffffff) r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r0) close(0xffffffffffffffff) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r0) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) close(r0) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, 0x0, 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, 0x0, 0x0, 0x0) fchdir(r1) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program did not crash testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, 0x0, 0x0, 0x0) fchdir(r1) program did not crash extracting C reproducer testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: simplifying C reproducer testing compiled C program (duration=1m0.056949594s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program did not crash testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program did not crash testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing compiled C program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: validation run: crashed=true testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: validation run: crashed=true testing program (duration=1m0.056949594s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$thread_pidfd-close-openat$thread_pidfd-fchdir-close-openat$thread_pidfd-fchdir detailed listing: executing program 0: r0 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x44000, 0x0) close(r0) r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) close(r0) (async) openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r1) program crashed: panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: validation run: crashed=true reproducing took 21m33.633963116s repro crashed as (corrupted=false): panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: goroutine 709 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc000309580, 0xc001093138) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x314 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0002b4cf0, 0xc000309560, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x4eb gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0002b4cf0, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x37b gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc001822710) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/kernfs/filesystem_mutex.go:31 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).DecRef(0xc0005f9b00, {0x21bc6b0, 0xc000e17208}) pkg/sentry/fsimpl/kernfs/kernfs.go:303 +0x116 gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(0xc0005f9b00, {0x21bc6b0, 0xc000e17208}) pkg/sentry/vfs/dentry.go:156 +0x68 gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc0015ca6e0?, 0xc0005f9b00?}, {0x21bc6b0, 0xc000e17208}) pkg/sentry/vfs/vfs.go:1114 +0x5b gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContext).SetWorkingDirectory(0xc000f8a040, {0x21bc6b0, 0xc000e17208}, {0xc0015ca6e0, 0xc00126ed80}) pkg/sentry/kernel/fs_context.go:144 +0x23b gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Fchdir(0xc000e17208, 0x457b27?, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:361 +0x3b8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000e17208, 0x51, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0xb90 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000e17208, 0x51, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000e17208, 0x51, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000e17208) pkg/sentry/kernel/task_syscall.go:258 +0x53e gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000e17208?, 0xc000e17208) pkg/sentry/kernel/task_run.go:269 +0x220c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000e17208, 0x4d) pkg/sentry/kernel/task_run.go:97 +0x402 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 673 pkg/sentry/kernel/task_start.go:416 +0x17e known lock chain: kernfs.filesystemRWMutex -> kernel.taskSetRWMutex -> kernel.fsContextMutex ====== kernfs.filesystemRWMutex -> kernel.taskSetRWMutex ===== goroutine 243 [running]: gvisor.dev/gvisor/pkg/sentry/kernel.(*taskSetRWMutex).RLock(0xc00067e460) bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/taskset_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/kernel.(*PIDNamespace).IDOfThreadGroup(0xc000438850, 0xc00027ac08) pkg/sentry/kernel/threads.go:328 +0x54 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*selfSymlink).Readlink(0xc0004390a0, {0x21bc6b0, 0xc00072a008}, 0x48866c?) pkg/sentry/fsimpl/proc/tasks_files.go:62 +0xb8 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*selfSymlink).Getlink(0xc0004390a0, {0x21bc6b0, 0xc00072a008}, 0xc0008c2000) pkg/sentry/fsimpl/proc/tasks_files.go:70 +0x5e gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).stepExistingLocked(0xc0006b86c0, {0x21bc6b0, 0xc00072a008}, 0xc0006d8008, 0xc0008c0000) pkg/sentry/fsimpl/kernfs/filesystem.go:83 +0x5e7 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).walkExistingLocked(0xc0006b86c0, {0x21bc6b0, 0xc00072a008}, 0xc0006d8008) pkg/sentry/fsimpl/kernfs/filesystem.go:197 +0x106 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).ReadlinkAt(0xc0006b86c0, {0x21bc6b0, 0xc00072a008}, 0xc0006d8008) pkg/sentry/fsimpl/kernfs/filesystem.go:697 +0x14a gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).ReadlinkAt(0xc0000049e0, {0x21bc6b0, 0xc00072a008}, 0xc000452180, 0xc000049598) pkg/sentry/vfs/vfs.go:512 +0x109 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.readlinkat(0xc00072a008, 0xffffff9c, 0xc0000b8070, 0xc0000cad00, 0x80) pkg/sentry/syscalls/linux/sys_file.go:1096 +0x305 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Readlinkat(0xc00072a008, 0x457b27?, {{0xffffffffffffff9c}, {0xc0000b8070}, {0xc0000cad00}, {0x80}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:1067 +0xc6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00072a008, 0x10b, {{0xffffffffffffff9c}, {0xc0000b8070}, {0xc0000cad00}, {0x80}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0xb90 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00072a008, 0x10b, {{0xffffffffffffff9c}, {0xc0000b8070}, {0xc0000cad00}, {0x80}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00072a008, 0x10b, {{0xffffffffffffff9c}, {0xc0000b8070}, {0xc0000cad00}, {0x80}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00072a008) pkg/sentry/kernel/task_syscall.go:258 +0x53e gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00072a008?, 0xc00072a008) pkg/sentry/kernel/task_run.go:269 +0x220c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00072a008, 0x1) pkg/sentry/kernel/task_run.go:97 +0x402 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1 pkg/sentry/kernel/task_start.go:416 +0x17e ====== kernel.taskSetRWMutex -> kernel.fsContextMutex ===== goroutine 270 [running]: gvisor.dev/gvisor/pkg/sentry/kernel.(*fsContextMutex).Lock(0xc000945548) bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/fs_context_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContext).checkAndPreventSharingOutsideTG(0xc000945540, 0xc00027c408) pkg/sentry/kernel/fs_context.go:209 +0x145 gvisor.dev/gvisor/pkg/sentry/kernel.(*runExecveAfterExecveCredsLock).execute(0xc000190d80, 0xc0009d6c88) pkg/sentry/kernel/task_exec.go:156 +0x3e8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0009d6c88, 0x13) pkg/sentry/kernel/task_run.go:97 +0x402 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 231 pkg/sentry/kernel/task_start.go:416 +0x17e final repro crashed as (corrupted=false): panic: WARNING: circular locking detected: kernel.fsContextMutex -> kernfs.filesystemRWMutex: goroutine 709 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc000309580, 0xc001093138) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x314 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0002b4cf0, 0xc000309560, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x4eb gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0002b4cf0, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x37b gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc001822710) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/kernfs/filesystem_mutex.go:31 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).DecRef(0xc0005f9b00, {0x21bc6b0, 0xc000e17208}) pkg/sentry/fsimpl/kernfs/kernfs.go:303 +0x116 gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(0xc0005f9b00, {0x21bc6b0, 0xc000e17208}) pkg/sentry/vfs/dentry.go:156 +0x68 gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc0015ca6e0?, 0xc0005f9b00?}, {0x21bc6b0, 0xc000e17208}) pkg/sentry/vfs/vfs.go:1114 +0x5b gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContext).SetWorkingDirectory(0xc000f8a040, {0x21bc6b0, 0xc000e17208}, {0xc0015ca6e0, 0xc00126ed80}) pkg/sentry/kernel/fs_context.go:144 +0x23b gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Fchdir(0xc000e17208, 0x457b27?, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:361 +0x3b8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000e17208, 0x51, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0xb90 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000e17208, 0x51, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000e17208, 0x51, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000e17208) pkg/sentry/kernel/task_syscall.go:258 +0x53e gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000e17208?, 0xc000e17208) pkg/sentry/kernel/task_run.go:269 +0x220c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000e17208, 0x4d) pkg/sentry/kernel/task_run.go:97 +0x402 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 673 pkg/sentry/kernel/task_start.go:416 +0x17e known lock chain: kernfs.filesystemRWMutex -> kernel.taskSetRWMutex -> kernel.fsContextMutex ====== kernfs.filesystemRWMutex -> kernel.taskSetRWMutex ===== goroutine 243 [running]: gvisor.dev/gvisor/pkg/sentry/kernel.(*taskSetRWMutex).RLock(0xc00067e460) bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/taskset_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/kernel.(*PIDNamespace).IDOfThreadGroup(0xc000438850, 0xc00027ac08) pkg/sentry/kernel/threads.go:328 +0x54 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*selfSymlink).Readlink(0xc0004390a0, {0x21bc6b0, 0xc00072a008}, 0x48866c?) pkg/sentry/fsimpl/proc/tasks_files.go:62 +0xb8 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*selfSymlink).Getlink(0xc0004390a0, {0x21bc6b0, 0xc00072a008}, 0xc0008c2000) pkg/sentry/fsimpl/proc/tasks_files.go:70 +0x5e gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).stepExistingLocked(0xc0006b86c0, {0x21bc6b0, 0xc00072a008}, 0xc0006d8008, 0xc0008c0000) pkg/sentry/fsimpl/kernfs/filesystem.go:83 +0x5e7 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).walkExistingLocked(0xc0006b86c0, {0x21bc6b0, 0xc00072a008}, 0xc0006d8008) pkg/sentry/fsimpl/kernfs/filesystem.go:197 +0x106 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).ReadlinkAt(0xc0006b86c0, {0x21bc6b0, 0xc00072a008}, 0xc0006d8008) pkg/sentry/fsimpl/kernfs/filesystem.go:697 +0x14a gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).ReadlinkAt(0xc0000049e0, {0x21bc6b0, 0xc00072a008}, 0xc000452180, 0xc000049598) pkg/sentry/vfs/vfs.go:512 +0x109 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.readlinkat(0xc00072a008, 0xffffff9c, 0xc0000b8070, 0xc0000cad00, 0x80) pkg/sentry/syscalls/linux/sys_file.go:1096 +0x305 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Readlinkat(0xc00072a008, 0x457b27?, {{0xffffffffffffff9c}, {0xc0000b8070}, {0xc0000cad00}, {0x80}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:1067 +0xc6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00072a008, 0x10b, {{0xffffffffffffff9c}, {0xc0000b8070}, {0xc0000cad00}, {0x80}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0xb90 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00072a008, 0x10b, {{0xffffffffffffff9c}, {0xc0000b8070}, {0xc0000cad00}, {0x80}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00072a008, 0x10b, {{0xffffffffffffff9c}, {0xc0000b8070}, {0xc0000cad00}, {0x80}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00072a008) pkg/sentry/kernel/task_syscall.go:258 +0x53e gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00072a008?, 0xc00072a008) pkg/sentry/kernel/task_run.go:269 +0x220c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00072a008, 0x1) pkg/sentry/kernel/task_run.go:97 +0x402 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1 pkg/sentry/kernel/task_start.go:416 +0x17e ====== kernel.taskSetRWMutex -> kernel.fsContextMutex ===== goroutine 270 [running]: gvisor.dev/gvisor/pkg/sentry/kernel.(*fsContextMutex).Lock(0xc000945548) bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/fs_context_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContext).checkAndPreventSharingOutsideTG(0xc000945540, 0xc00027c408) pkg/sentry/kernel/fs_context.go:209 +0x145 gvisor.dev/gvisor/pkg/sentry/kernel.(*runExecveAfterExecveCredsLock).execute(0xc000190d80, 0xc0009d6c88) pkg/sentry/kernel/task_exec.go:156 +0x3e8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0009d6c88, 0x13) pkg/sentry/kernel/task_run.go:97 +0x402 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 231 pkg/sentry/kernel/task_start.go:416 +0x17e