Extracting prog: 55.602576673s
Minimizing prog: 3m3.979794976s
Simplifying prog options: 1m45.229963016s
Extracting C: 1m2.202529347s
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, &(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=1m1.254404556s, {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, &(0x7f0000002480)={0x0, 0xfffffffffffffffe}, 0x0)

program did not crash
testing program (duration=1m1.254404556s, {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(0x200, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.254404556s, {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(0x200, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m1.254404556s, {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=1m1.254404556s, {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, &(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=1m1.254404556s, {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 6m47.004759163s
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 817 gp=0xc0010781c0 m=19 mp=0xc000850308 [running]:
panic({0x1c586e0?, 0x2c2cca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc00100ed60 sp=0xc00100ecb0 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=0xc00100edc0 sp=0xc00100ed60 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000a2cb00)
	pkg/sentry/kernel/task_signals.go:385 +0x53 fp=0xc00100ee50 sp=0xc00100edc0 pc=0xfe6133
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc000fdb7b0, 0xc000fdb770?)
	pkg/sentry/kernel/task_acct.go:151 +0xea fp=0xc00100ee80 sp=0xc00100ee50 pc=0xfb168a
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000fdb770, {0x0?, {0x0?}, 0xc0000276d0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x342 fp=0xc00100ef58 sp=0xc00100ee80 pc=0xb71562
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000fdb008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x18a fp=0xc00100f000 sp=0xc00100ef58 pc=0xfb116a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000287008, 0xc000b2ac40, 0xc002045490, 0x0, 0xc0020454a0)
	pkg/sentry/kernel/thread_group.go:308 +0x709 fp=0xc00100f078 sp=0xc00100f000 pc=0xffc9a9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000e79908, 0xc00100f5a0)
	pkg/sentry/kernel/task_clone.go:238 +0x217a fp=0xc00100f580 sp=0xc00100f078 pc=0xfba21a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc000e79908, 0x200, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0x130 fp=0xc00100f670 sp=0xc00100f580 pc=0x12c55d0
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc000e79908, 0x0?, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0xef fp=0xc00100f6e8 sp=0xc00100f670 pc=0x12618af
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000e79908, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc00100f998 sp=0xc00100f6e8 pc=0xff329f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000e79908, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc00100fa40 sp=0xc00100f998 pc=0xff53c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000e79908, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc00100fab0 sp=0xc00100fa40 pc=0xff4ce7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000e79908)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc00100fbd0 sp=0xc00100fab0 pc=0xff484a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000e79908?, 0xc000e79908)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc00100fe78 sp=0xc00100fbd0 pc=0xfdf2d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000e79908, 0x47)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc00100ffb0 sp=0xc00100fe78 pc=0xfdc5fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc00100ffe0 sp=0xc00100ffb0 pc=0xff0ba5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc00100ffe8 sp=0xc00100ffe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1289
	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 817 gp=0xc0010781c0 m=19 mp=0xc000850308 [running]:
panic({0x1c586e0?, 0x2c2cca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc00100ed60 sp=0xc00100ecb0 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=0xc00100edc0 sp=0xc00100ed60 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000a2cb00)
	pkg/sentry/kernel/task_signals.go:385 +0x53 fp=0xc00100ee50 sp=0xc00100edc0 pc=0xfe6133
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc000fdb7b0, 0xc000fdb770?)
	pkg/sentry/kernel/task_acct.go:151 +0xea fp=0xc00100ee80 sp=0xc00100ee50 pc=0xfb168a
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000fdb770, {0x0?, {0x0?}, 0xc0000276d0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x342 fp=0xc00100ef58 sp=0xc00100ee80 pc=0xb71562
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000fdb008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x18a fp=0xc00100f000 sp=0xc00100ef58 pc=0xfb116a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000287008, 0xc000b2ac40, 0xc002045490, 0x0, 0xc0020454a0)
	pkg/sentry/kernel/thread_group.go:308 +0x709 fp=0xc00100f078 sp=0xc00100f000 pc=0xffc9a9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000e79908, 0xc00100f5a0)
	pkg/sentry/kernel/task_clone.go:238 +0x217a fp=0xc00100f580 sp=0xc00100f078 pc=0xfba21a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc000e79908, 0x200, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0x130 fp=0xc00100f670 sp=0xc00100f580 pc=0x12c55d0
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc000e79908, 0x0?, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0xef fp=0xc00100f6e8 sp=0xc00100f670 pc=0x12618af
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000e79908, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc00100f998 sp=0xc00100f6e8 pc=0xff329f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000e79908, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc00100fa40 sp=0xc00100f998 pc=0xff53c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000e79908, 0x38, {{0x200}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc00100fab0 sp=0xc00100fa40 pc=0xff4ce7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000e79908)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc00100fbd0 sp=0xc00100fab0 pc=0xff484a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000e79908?, 0xc000e79908)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc00100fe78 sp=0xc00100fbd0 pc=0xfdf2d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000e79908, 0x47)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc00100ffb0 sp=0xc00100fe78 pc=0xfdc5fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc00100ffe0 sp=0xc00100ffb0 pc=0xff0ba5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc00100ffe8 sp=0xc00100ffe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1289
	pkg/sentry/kernel/task_start.go:400 +0x185