Extracting prog: 27.017099028s
Minimizing prog: 4m44.585644159s
Simplifying prog options: 0s
Extracting C: 11.487380105s
Simplifying C: 1m29.448163786s


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:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-epoll_ctl$EPOLL_CTL_ADD-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
r2 = syz_pidfd_open(r1, 0x0)
epoll_ctl$EPOLL_CTL_ADD(0xffffffffffffffff, 0x1, r2, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
r3 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r3)

program crashed: panic: nested locking: kernel.taskSetRWMutex:
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-epoll_ctl$EPOLL_CTL_ADD-fcntl$setstatus-syz_clone
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
r2 = syz_pidfd_open(r1, 0x0)
epoll_ctl$EPOLL_CTL_ADD(0xffffffffffffffff, 0x1, r2, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-epoll_ctl$EPOLL_CTL_ADD-fcntl$setstatus-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
r2 = syz_pidfd_open(r1, 0x0)
epoll_ctl$EPOLL_CTL_ADD(0xffffffffffffffff, 0x1, r2, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240))

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-epoll_ctl$EPOLL_CTL_ADD-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
r2 = syz_pidfd_open(r1, 0x0)
epoll_ctl$EPOLL_CTL_ADD(0xffffffffffffffff, 0x1, r2, 0x0)
r3 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r3)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
syz_pidfd_open(r1, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
r2 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r2)

program crashed: panic: nested locking: kernel.taskSetRWMutex:
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
getpid()
fcntl$setstatus(r0, 0x4, 0x2c00)
r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r1)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
syz_pidfd_open(0x0, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r1)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
r1 = getpid()
syz_pidfd_open(r1, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
r2 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r2)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
close(0xffffffffffffffff)
r0 = getpid()
syz_pidfd_open(r0, 0x0)
fcntl$setstatus(0xffffffffffffffff, 0x4, 0x2c00)
r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(0xffffffffffffffff, 0x8901, &(0x7f0000000240)=r1)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, 0x0, 0x0)
close(r0)
r1 = getpid()
syz_pidfd_open(r1, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
r2 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r2)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
syz_pidfd_open(r1, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
program crashed: panic: nested locking: kernel.taskSetRWMutex:
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
program crashed: panic: nested locking: kernel.taskSetRWMutex:
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true 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}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 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}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
program crashed: panic: nested locking: kernel.taskSetRWMutex:
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
program crashed: panic: nested locking: kernel.taskSetRWMutex:
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
program crashed: panic: nested locking: kernel.taskSetRWMutex:
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
program crashed: panic: nested locking: kernel.taskSetRWMutex:
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
program crashed: panic: nested locking: kernel.taskSetRWMutex:
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
syz_pidfd_open(r1, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
r2 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r2)

program crashed: panic: nested locking: kernel.taskSetRWMutex:
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
syz_pidfd_open(r1, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
r2 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r2)

program crashed: panic: nested locking: kernel.taskSetRWMutex:
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): signalfd-close-getpid-syz_pidfd_open-fcntl$setstatus-syz_clone-ioctl$sock_FIOSETOWN
detailed listing:
executing program 0:
r0 = signalfd(0xffffffffffffffff, &(0x7f00000003c0), 0x8)
close(r0)
r1 = getpid()
syz_pidfd_open(r1, 0x0)
fcntl$setstatus(r0, 0x4, 0x2c00)
r2 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f0000000240)=r2)

program crashed: panic: nested locking: kernel.taskSetRWMutex:
validation run: crashed=true
reproducing took 7m36.58652266s
repro crashed as (corrupted=false):
panic: nested locking: kernel.taskSetRWMutex:
	goroutine 394 [running]:
	gvisor.dev/gvisor/pkg/sentry/kernel.(*taskSetRWMutex).RLock(0xc00056c1e0)
		bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/taskset_mutex.go:59 +0x3c
	gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).Leader(0xc000c9ac08)
		pkg/sentry/kernel/threads.go:484 +0x5d
	gvisor.dev/gvisor/pkg/sentry/kernel/fasync.(*FileAsync).NotifyEvent(0xc0009f40e0, 0x41)
		pkg/sentry/kernel/fasync/fasync.go:107 +0x1ae
	gvisor.dev/gvisor/pkg/waiter.(*Queue).Notify(0xc000b1d090, 0x41)
		pkg/waiter/waiter.go:253 +0x9d
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).notifyPIDFDsLocked(0xc000ca0c88)
		pkg/sentry/kernel/pidfd.go:281 +0x6f
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).exitNotifyLocked(0xc000ca0c88, 0x0)
		pkg/sentry/kernel/task_exit.go:655 +0xe5
	gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitNotify).execute(0xc000ca0c88?, 0xc000ca0c88)
		pkg/sentry/kernel/task_exit.go:634 +0x30c
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000ca0c88, 0x43)
		pkg/sentry/kernel/task_run.go:89 +0x4aa
	created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 316
		pkg/sentry/kernel/task_start.go:416 +0x15a
	

final repro crashed as (corrupted=false):
panic: nested locking: kernel.taskSetRWMutex:
	goroutine 394 [running]:
	gvisor.dev/gvisor/pkg/sentry/kernel.(*taskSetRWMutex).RLock(0xc00056c1e0)
		bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/taskset_mutex.go:59 +0x3c
	gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).Leader(0xc000c9ac08)
		pkg/sentry/kernel/threads.go:484 +0x5d
	gvisor.dev/gvisor/pkg/sentry/kernel/fasync.(*FileAsync).NotifyEvent(0xc0009f40e0, 0x41)
		pkg/sentry/kernel/fasync/fasync.go:107 +0x1ae
	gvisor.dev/gvisor/pkg/waiter.(*Queue).Notify(0xc000b1d090, 0x41)
		pkg/waiter/waiter.go:253 +0x9d
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).notifyPIDFDsLocked(0xc000ca0c88)
		pkg/sentry/kernel/pidfd.go:281 +0x6f
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).exitNotifyLocked(0xc000ca0c88, 0x0)
		pkg/sentry/kernel/task_exit.go:655 +0xe5
	gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitNotify).execute(0xc000ca0c88?, 0xc000ca0c88)
		pkg/sentry/kernel/task_exit.go:634 +0x30c
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000ca0c88, 0x43)
		pkg/sentry/kernel/task_run.go:89 +0x4aa
	created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 316
		pkg/sentry/kernel/task_start.go:416 +0x15a