Extracting prog: 56.476754557s
Minimizing prog: 2m47.787250905s
Simplifying prog options: 2m45.302890056s
Extracting C: 32.576459535s
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: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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f0000002480)={0x0, 0xfffffffffffffffe}, 0x0)
syz_clone(0x200, 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=55.858186857s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f0000002480)={0x0, 0xfffffffffffffffe}, 0x0)

program did not crash
testing program (duration=55.858186857s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone
detailed listing:
executing program 0:
syz_clone(0x200, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=55.858186857s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, 0x0, 0x0)
syz_clone(0x200, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=55.858186857s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
program did not crash
simplifying guilty program options
testing program (duration=55.858186857s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f0000002480)={0x0, 0xfffffffffffffffe}, 0x0)
syz_clone(0x200, 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=55.858186857s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
program did not crash
testing program (duration=55.858186857s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:10 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f0000002480)={0x0, 0xfffffffffffffffe}, 0x0)
syz_clone(0x200, 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=55.858186857s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:10 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone
program did not crash
reproducing took 7m26.233351285s
repro crashed as (corrupted=false):
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xfe6133]

goroutine 336 gp=0xc0009f7500 m=0 mp=0x2de5b20 [running]:
panic({0x1c586e0?, 0x2c2cca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000f24d60 sp=0xc000f24cb0 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=0xc000f24dc0 sp=0xc000f24d60 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000bcaf00)
	pkg/sentry/kernel/task_signals.go:385 +0x53 fp=0xc000f24e50 sp=0xc000f24dc0 pc=0xfe6133
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc000fa53b0, 0xc000fa5370?)
	pkg/sentry/kernel/task_acct.go:151 +0xea fp=0xc000f24e80 sp=0xc000f24e50 pc=0xfb168a
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000fa5370, {0x0?, {0x0?}, 0xc000c8ae60?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x342 fp=0xc000f24f58 sp=0xc000f24e80 pc=0xb71562
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000fa4c08, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x18a fp=0xc000f25000 sp=0xc000f24f58 pc=0xfb116a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc00027d008, 0xc000a32930, 0xc00103b930, 0x0, 0xc00103b940)
	pkg/sentry/kernel/thread_group.go:308 +0x709 fp=0xc000f25078 sp=0xc000f25000 pc=0xffc9a9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc001052c88, 0xc000f255a0)
	pkg/sentry/kernel/task_clone.go:238 +0x217a fp=0xc000f25580 sp=0xc000f25078 pc=0xfba21a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc001052c88, 0x200, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0x130 fp=0xc000f25670 sp=0xc000f25580 pc=0x12c55d0
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc001052c88, 0x0?, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0xef fp=0xc000f256e8 sp=0xc000f25670 pc=0x12618af
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001052c88, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc000f25998 sp=0xc000f256e8 pc=0xff329f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001052c88, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc000f25a40 sp=0xc000f25998 pc=0xff53c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001052c88, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc000f25ab0 sp=0xc000f25a40 pc=0xff4ce7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001052c88)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc000f25bd0 sp=0xc000f25ab0 pc=0xff484a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001052c88?, 0xc001052c88)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc000f25e78 sp=0xc000f25bd0 pc=0xfdf2d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001052c88, 0x43)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc000f25fb0 sp=0xc000f25e78 pc=0xfdc5fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc000f25fe0 sp=0xc000f25fb0 pc=0xff0ba5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000f25fe8 sp=0xc000f25fe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 319
	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=0xfe6133]

goroutine 336 gp=0xc0009f7500 m=0 mp=0x2de5b20 [running]:
panic({0x1c586e0?, 0x2c2cca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000f24d60 sp=0xc000f24cb0 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=0xc000f24dc0 sp=0xc000f24d60 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000bcaf00)
	pkg/sentry/kernel/task_signals.go:385 +0x53 fp=0xc000f24e50 sp=0xc000f24dc0 pc=0xfe6133
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc000fa53b0, 0xc000fa5370?)
	pkg/sentry/kernel/task_acct.go:151 +0xea fp=0xc000f24e80 sp=0xc000f24e50 pc=0xfb168a
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000fa5370, {0x0?, {0x0?}, 0xc000c8ae60?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x342 fp=0xc000f24f58 sp=0xc000f24e80 pc=0xb71562
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000fa4c08, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x18a fp=0xc000f25000 sp=0xc000f24f58 pc=0xfb116a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc00027d008, 0xc000a32930, 0xc00103b930, 0x0, 0xc00103b940)
	pkg/sentry/kernel/thread_group.go:308 +0x709 fp=0xc000f25078 sp=0xc000f25000 pc=0xffc9a9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc001052c88, 0xc000f255a0)
	pkg/sentry/kernel/task_clone.go:238 +0x217a fp=0xc000f25580 sp=0xc000f25078 pc=0xfba21a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc001052c88, 0x200, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0x130 fp=0xc000f25670 sp=0xc000f25580 pc=0x12c55d0
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc001052c88, 0x0?, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0xef fp=0xc000f256e8 sp=0xc000f25670 pc=0x12618af
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001052c88, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc000f25998 sp=0xc000f256e8 pc=0xff329f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001052c88, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc000f25a40 sp=0xc000f25998 pc=0xff53c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001052c88, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc000f25ab0 sp=0xc000f25a40 pc=0xff4ce7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001052c88)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc000f25bd0 sp=0xc000f25ab0 pc=0xff484a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001052c88?, 0xc001052c88)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc000f25e78 sp=0xc000f25bd0 pc=0xfdf2d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001052c88, 0x43)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc000f25fb0 sp=0xc000f25e78 pc=0xfdc5fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc000f25fe0 sp=0xc000f25fb0 pc=0xff0ba5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000f25fe8 sp=0xc000f25fe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 319
	pkg/sentry/kernel/task_start.go:400 +0x185