Extracting prog: 49.036585758s
Minimizing prog: 6m3.642218548s
Simplifying prog options: 2m48.677406915s
Extracting C: 52.907757906s
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:4 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=51.896219496s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-syz_clone3
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000), 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=51.896219496s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
pidfd_send_signal(0xffffffffffffffff, 0x21, 0x0, 0x0)

program did not crash
testing program (duration=51.896219496s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program did not crash
testing program (duration=51.896219496s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program did not crash
testing program (duration=51.896219496s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(0x0, 0x0) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program did not crash
testing program (duration=51.896219496s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(0x0, 0x0)
pidfd_send_signal(0xffffffffffffffff, 0x21, 0x0, 0x0)

program did not crash
testing program (duration=51.896219496s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(0xffffffffffffffff, 0x21, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=51.896219496s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
program did not crash
simplifying guilty program options
testing program (duration=51.896219496s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program did not crash
testing program (duration=51.896219496s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true 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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program crashed: lost connection to test machine
ignore low priority crash: lost connection to test machine
testing program (duration=51.896219496s, {Threaded:true 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
extracting C reproducer
testing compiled C program (duration=51.896219496s, {Threaded:true 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
program did not crash
testing program (duration=51.896219496s, {Threaded:true 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
validation run: crashed=true
testing program (duration=51.896219496s, {Threaded:true 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
validation run: crashed=true
testing program (duration=51.896219496s, {Threaded:true 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: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}}): syz_clone3-syz_clone3-pidfd_send_signal
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000080)={0x180801400, 0x0, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58) (async)
syz_clone3(&(0x7f0000000080)={0x180801400, &(0x7f0000000000)=<r0=>0xffffffffffffffff, 0x0, 0x0, {0x3d}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pidfd_send_signal(r0, 0x21, 0x0, 0x0)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
validation run: crashed=true
reproducing took 12m12.460953773s
repro crashed as (corrupted=false):
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xe00b50]

goroutine 2962 gp=0xc000b9ad20 m=15 mp=0xc0002a0008 [running]:
panic({0x18a5ca0?, 0x2ac12e0?})
	GOROOT/src/runtime/panic.go:879 +0x15c fp=0xc000ab1170 sp=0xc000ab10c0 pc=0x48a7dc
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:336
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:931 +0x2f0 fp=0xc000ab11d0 sp=0xc000ab1170 pc=0x48d7d0
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc000b2e008, {0x1aec4ea, 0x15}, {0xc0009d9920, 0x1, 0x1})
	pkg/sentry/kernel/task_log.go:54 +0x60 fp=0xc000ab1230 sp=0xc000ab11e0 pc=0xe00b50
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).sendSignalTimerLocked(0xc000b2e008, 0xc000853880, 0x1, 0x0)
	pkg/sentry/kernel/task_signals.go:464 +0x5b8 fp=0xc000ab1330 sp=0xc000ab1230 pc=0xe0ad48
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).sendSignalLocked(...)
	pkg/sentry/kernel/task_signals.go:400
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0xc000b2e008, 0xc000853880)
	pkg/sentry/kernel/task_signals.go:385 +0x9c fp=0xc000ab13d0 sp=0xc000ab1330 pc=0xe0a46c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).PIDFDSendSignal(0xc000b79908, 0xc000786080, 0x21, 0x0, 0x0)
	pkg/sentry/kernel/pidfd.go:390 +0x618 fp=0xc000ab1510 sp=0xc000ab13d0 pc=0xdc7218
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.PIDFDSendSignal(0xc000b79908, 0x62?, {{0x4}, {0x21}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_signal.go:567 +0x174 fp=0xc000ab1600 sp=0xc000ab1510 pc=0x1049c14
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000b79908, 0x1a8, {{0x4}, {0x21}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x6d0 fp=0xc000ab1950 sp=0xc000ab1600 pc=0xe14b60
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000b79908, 0x1a8, {{0x4}, {0x21}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x50 fp=0xc000ab1a00 sp=0xc000ab1950 pc=0xe16230
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000b79908, 0x1a8, {{0x4}, {0x21}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x78 fp=0xc000ab1a70 sp=0xc000ab1a00 pc=0xe15d58
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000b79908)
	pkg/sentry/kernel/task_syscall.go:258 +0x3bc fp=0xc000ab1ba0 sp=0xc000ab1a70 pc=0xe159fc
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000b79908?, 0xc000b79908)
	pkg/sentry/kernel/task_run.go:258 +0x1554 fp=0xc000ab1e50 sp=0xc000ab1ba0 pc=0xe05394
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000b79908, 0x375)
	pkg/sentry/kernel/task_run.go:89 +0x358 fp=0xc000ab1fa0 sp=0xc000ab1e50 pc=0xe03808
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:479 +0x38 fp=0xc000ab1fd0 sp=0xc000ab1fa0 pc=0xe13108
runtime.goexit({})
	src/runtime/asm_arm64.s:1447 +0x4 fp=0xc000ab1fd0 sp=0xc000ab1fd0 pc=0x4935a4
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 2944
	pkg/sentry/kernel/task_start.go:479 +0x138

final repro crashed as (corrupted=false):
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xe00b50]

goroutine 2962 gp=0xc000b9ad20 m=15 mp=0xc0002a0008 [running]:
panic({0x18a5ca0?, 0x2ac12e0?})
	GOROOT/src/runtime/panic.go:879 +0x15c fp=0xc000ab1170 sp=0xc000ab10c0 pc=0x48a7dc
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:336
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:931 +0x2f0 fp=0xc000ab11d0 sp=0xc000ab1170 pc=0x48d7d0
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc000b2e008, {0x1aec4ea, 0x15}, {0xc0009d9920, 0x1, 0x1})
	pkg/sentry/kernel/task_log.go:54 +0x60 fp=0xc000ab1230 sp=0xc000ab11e0 pc=0xe00b50
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).sendSignalTimerLocked(0xc000b2e008, 0xc000853880, 0x1, 0x0)
	pkg/sentry/kernel/task_signals.go:464 +0x5b8 fp=0xc000ab1330 sp=0xc000ab1230 pc=0xe0ad48
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).sendSignalLocked(...)
	pkg/sentry/kernel/task_signals.go:400
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0xc000b2e008, 0xc000853880)
	pkg/sentry/kernel/task_signals.go:385 +0x9c fp=0xc000ab13d0 sp=0xc000ab1330 pc=0xe0a46c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).PIDFDSendSignal(0xc000b79908, 0xc000786080, 0x21, 0x0, 0x0)
	pkg/sentry/kernel/pidfd.go:390 +0x618 fp=0xc000ab1510 sp=0xc000ab13d0 pc=0xdc7218
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.PIDFDSendSignal(0xc000b79908, 0x62?, {{0x4}, {0x21}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_signal.go:567 +0x174 fp=0xc000ab1600 sp=0xc000ab1510 pc=0x1049c14
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000b79908, 0x1a8, {{0x4}, {0x21}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x6d0 fp=0xc000ab1950 sp=0xc000ab1600 pc=0xe14b60
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000b79908, 0x1a8, {{0x4}, {0x21}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x50 fp=0xc000ab1a00 sp=0xc000ab1950 pc=0xe16230
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000b79908, 0x1a8, {{0x4}, {0x21}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x78 fp=0xc000ab1a70 sp=0xc000ab1a00 pc=0xe15d58
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000b79908)
	pkg/sentry/kernel/task_syscall.go:258 +0x3bc fp=0xc000ab1ba0 sp=0xc000ab1a70 pc=0xe159fc
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000b79908?, 0xc000b79908)
	pkg/sentry/kernel/task_run.go:258 +0x1554 fp=0xc000ab1e50 sp=0xc000ab1ba0 pc=0xe05394
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000b79908, 0x375)
	pkg/sentry/kernel/task_run.go:89 +0x358 fp=0xc000ab1fa0 sp=0xc000ab1e50 pc=0xe03808
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:479 +0x38 fp=0xc000ab1fd0 sp=0xc000ab1fa0 pc=0xe13108
runtime.goexit({})
	src/runtime/asm_arm64.s:1447 +0x4 fp=0xc000ab1fd0 sp=0xc000ab1fd0 pc=0x4935a4
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 2944
	pkg/sentry/kernel/task_start.go:479 +0x138