Extracting prog: 57.69037488s
Minimizing prog: 3m11.379080623s
Simplifying prog options: 1m46.917838501s
Extracting C: 1m4.546397392s
Simplifying C: 0s


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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f0000000040)={0x0, 0xfffffffffffffff6}, 0x0)
syz_clone(0x6198a100, 0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=1m3.716144748s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f0000000040)={0x0, 0xfffffffffffffff6}, 0x0)

program did not crash
testing program (duration=1m3.716144748s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone
detailed listing:
executing program 0:
syz_clone(0x6198a100, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m3.716144748s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, 0x0, 0x0)
syz_clone(0x6198a100, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m3.716144748s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
program did not crash
simplifying guilty program options
testing program (duration=1m3.716144748s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f0000000040)={0x0, 0xfffffffffffffff6}, 0x0)
syz_clone(0x6198a100, 0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
extracting C reproducer
testing compiled C program (duration=1m3.716144748s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
program did not crash
reproducing took 7m0.641966361s
repro crashed as (corrupted=false):
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xfe7133]

goroutine 1925 gp=0xc001bb1880 m=25 mp=0xc000583808 [running]:
panic({0x1c5a8e0?, 0x2c2fca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc001e78d60 sp=0xc001e78cb0 pc=0x478628
runtime.panicmem(...)
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:262
runtime.sigpanic()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/signal_unix.go:900 +0x359 fp=0xc001e78dc0 sp=0xc001e78d60 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc001096080)
	pkg/sentry/kernel/task_signals.go:385 +0x53 fp=0xc001e78e50 sp=0xc001e78dc0 pc=0xfe7133
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc0020b67b0, 0xc0020b6770?)
	pkg/sentry/kernel/task_acct.go:151 +0xea fp=0xc001e78e80 sp=0xc001e78e50 pc=0xfb268a
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc0020b6770, {0x0?, {0x0?}, 0xc0002a7f40?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x342 fp=0xc001e78f58 sp=0xc001e78e80 pc=0xb71562
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc0020b6008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x18a fp=0xc001e79000 sp=0xc001e78f58 pc=0xfb216a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000247008, 0xc00208a1c0, 0xc00208ecd0, 0x0, 0xc00208ece0)
	pkg/sentry/kernel/thread_group.go:308 +0x709 fp=0xc001e79078 sp=0xc001e79000 pc=0xffd9a9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc00129c008, 0xc001e795a0)
	pkg/sentry/kernel/task_clone.go:238 +0x217a fp=0xc001e79580 sp=0xc001e79078 pc=0xfbb21a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc00129c008, 0x6198a000, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0x130 fp=0xc001e79670 sp=0xc001e79580 pc=0x12c6c30
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc00129c008, 0x0?, {{0x6198a000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0xef fp=0xc001e796e8 sp=0xc001e79670 pc=0x1262f0f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00129c008, 0x38, {{0x6198a000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc001e79998 sp=0xc001e796e8 pc=0xff429f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00129c008, 0x38, {{0x6198a000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc001e79a40 sp=0xc001e79998 pc=0xff63c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00129c008, 0x38, {{0x6198a000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc001e79ab0 sp=0xc001e79a40 pc=0xff5ce7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00129c008)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc001e79bd0 sp=0xc001e79ab0 pc=0xff584a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00129c008?, 0xc00129c008)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc001e79e78 sp=0xc001e79bd0 pc=0xfe02d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00129c008, 0x45)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc001e79fb0 sp=0xc001e79e78 pc=0xfdd5fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc001e79fe0 sp=0xc001e79fb0 pc=0xff1ba5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc001e79fe8 sp=0xc001e79fe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1811
	pkg/sentry/kernel/task_start.go:400 +0x185

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=0xfe7133]

goroutine 1925 gp=0xc001bb1880 m=25 mp=0xc000583808 [running]:
panic({0x1c5a8e0?, 0x2c2fca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc001e78d60 sp=0xc001e78cb0 pc=0x478628
runtime.panicmem(...)
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:262
runtime.sigpanic()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/signal_unix.go:900 +0x359 fp=0xc001e78dc0 sp=0xc001e78d60 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc001096080)
	pkg/sentry/kernel/task_signals.go:385 +0x53 fp=0xc001e78e50 sp=0xc001e78dc0 pc=0xfe7133
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc0020b67b0, 0xc0020b6770?)
	pkg/sentry/kernel/task_acct.go:151 +0xea fp=0xc001e78e80 sp=0xc001e78e50 pc=0xfb268a
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc0020b6770, {0x0?, {0x0?}, 0xc0002a7f40?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x342 fp=0xc001e78f58 sp=0xc001e78e80 pc=0xb71562
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc0020b6008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x18a fp=0xc001e79000 sp=0xc001e78f58 pc=0xfb216a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000247008, 0xc00208a1c0, 0xc00208ecd0, 0x0, 0xc00208ece0)
	pkg/sentry/kernel/thread_group.go:308 +0x709 fp=0xc001e79078 sp=0xc001e79000 pc=0xffd9a9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc00129c008, 0xc001e795a0)
	pkg/sentry/kernel/task_clone.go:238 +0x217a fp=0xc001e79580 sp=0xc001e79078 pc=0xfbb21a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc00129c008, 0x6198a000, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0x130 fp=0xc001e79670 sp=0xc001e79580 pc=0x12c6c30
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc00129c008, 0x0?, {{0x6198a000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0xef fp=0xc001e796e8 sp=0xc001e79670 pc=0x1262f0f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00129c008, 0x38, {{0x6198a000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc001e79998 sp=0xc001e796e8 pc=0xff429f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00129c008, 0x38, {{0x6198a000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc001e79a40 sp=0xc001e79998 pc=0xff63c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00129c008, 0x38, {{0x6198a000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc001e79ab0 sp=0xc001e79a40 pc=0xff5ce7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00129c008)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc001e79bd0 sp=0xc001e79ab0 pc=0xff584a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00129c008?, 0xc00129c008)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc001e79e78 sp=0xc001e79bd0 pc=0xfe02d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00129c008, 0x45)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc001e79fb0 sp=0xc001e79e78 pc=0xfdd5fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc001e79fe0 sp=0xc001e79fb0 pc=0xff1ba5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc001e79fe8 sp=0xc001e79fe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1811
	pkg/sentry/kernel/task_start.go:400 +0x185