Extracting prog: 24.23969701s
Minimizing prog: 2m0.286292438s
Simplifying prog options: 1m9.159981526s
Extracting C: 11.17827807s
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: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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone3
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f00000000c0)={0x0, 0x1}, 0x0)
syz_clone3(&(0x7f0000000100)={0x200000, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x58)

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=30s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f00000000c0)={0x0, 0x1}, 0x0)

program did not crash
testing program (duration=30s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone3
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000100)={0x200000, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=30s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone3
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, 0x0, 0x0)
syz_clone3(&(0x7f0000000100)={0x200000, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=30s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone3
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f00000000c0)={0x0, 0x1}, 0x0)
syz_clone3(0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=30s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone3
program did not crash
simplifying guilty program options
testing program (duration=30s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone3
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f00000000c0)={0x0, 0x1}, 0x0)
syz_clone3(&(0x7f0000000100)={0x200000, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone3
program did not crash
testing program (duration=30s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone3
detailed listing:
executing program 0:
prlimit64(0x0, 0x0, &(0x7f00000000c0)={0x0, 0x1}, 0x0)
syz_clone3(&(0x7f0000000100)={0x200000, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-syz_clone3
program did not crash
reproducing took 4m4.588970473s
repro crashed as (corrupted=false):
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb15f18]

goroutine 1383 gp=0xc00083b500 m=18 mp=0xc0008fa008 [running]:
panic({0x12ac6c0?, 0x236d190?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000a6b410 sp=0xc000a6b360 pc=0x473fe8
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=0xc000a6b470 sp=0xc000a6b410 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000b84a00)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc000a6b4d0 sp=0xc000a6b470 pc=0xb15f18
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x10000593918?, 0xc001973770?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc000a6b4f8 sp=0xc000a6b4d0 pc=0xaf5bb7
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc001973770, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc000a6b598 sp=0xc000a6b4f8 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc001973008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc000a6b610 sp=0xc000a6b598 pc=0xaf58c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000201008, 0xc00170a540, 0xc0006bea30, 0x0, 0xc0006bea50)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc000a6b650 sp=0xc000a6b610 pc=0xb22c4c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000eaa588, 0xc000a6ba10)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc000a6b9e8 sp=0xc000a6b650 pc=0xafb6bb
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone3(0xc000eaa588?, 0xc000a6bad0?, {{0x7f0448596550}, {0x58}, {0x7f0448596550}, {0x0}, {0x0}, {0x58}})
	pkg/sentry/syscalls/linux/sys_thread.go:252 +0xcf fp=0xc000a6ba78 sp=0xc000a6b9e8 pc=0xcfca0f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000eaa588, 0x1b3, {{0x7f0448596550}, {0x58}, {0x7f0448596550}, {0x0}, {0x0}, {0x58}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc000a6bca8 sp=0xc000a6ba78 pc=0xb1d4eb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000eaa588, 0x1b3, {{0x7f0448596550}, {0x58}, {0x7f0448596550}, {0x0}, {0x0}, {0x58}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc000a6bd00 sp=0xc000a6bca8 pc=0xb1ea8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000eaa588, 0x1b3, {{0x7f0448596550}, {0x58}, {0x7f0448596550}, {0x0}, {0x0}, {0x58}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc000a6bd50 sp=0xc000a6bd00 pc=0xb1e63d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00094e270?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc000a6be28 sp=0xc000a6bd50 pc=0xb1e329
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00181d8c0?, 0xc000eaa588)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc000a6bf38 sp=0xc000a6be28 pc=0xb11b85
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000eaa588, 0x45)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc000a6bfc0 sp=0xc000a6bf38 pc=0xb1019d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc000a6bfe0 sp=0xc000a6bfc0 pc=0xb1ba65
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000a6bfe8 sp=0xc000a6bfe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1488
	pkg/sentry/kernel/task_start.go:400 +0xd9

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=0xb15f18]

goroutine 1383 gp=0xc00083b500 m=18 mp=0xc0008fa008 [running]:
panic({0x12ac6c0?, 0x236d190?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000a6b410 sp=0xc000a6b360 pc=0x473fe8
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=0xc000a6b470 sp=0xc000a6b410 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000b84a00)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc000a6b4d0 sp=0xc000a6b470 pc=0xb15f18
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x10000593918?, 0xc001973770?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc000a6b4f8 sp=0xc000a6b4d0 pc=0xaf5bb7
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc001973770, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc000a6b598 sp=0xc000a6b4f8 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc001973008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc000a6b610 sp=0xc000a6b598 pc=0xaf58c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000201008, 0xc00170a540, 0xc0006bea30, 0x0, 0xc0006bea50)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc000a6b650 sp=0xc000a6b610 pc=0xb22c4c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000eaa588, 0xc000a6ba10)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc000a6b9e8 sp=0xc000a6b650 pc=0xafb6bb
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone3(0xc000eaa588?, 0xc000a6bad0?, {{0x7f0448596550}, {0x58}, {0x7f0448596550}, {0x0}, {0x0}, {0x58}})
	pkg/sentry/syscalls/linux/sys_thread.go:252 +0xcf fp=0xc000a6ba78 sp=0xc000a6b9e8 pc=0xcfca0f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000eaa588, 0x1b3, {{0x7f0448596550}, {0x58}, {0x7f0448596550}, {0x0}, {0x0}, {0x58}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc000a6bca8 sp=0xc000a6ba78 pc=0xb1d4eb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000eaa588, 0x1b3, {{0x7f0448596550}, {0x58}, {0x7f0448596550}, {0x0}, {0x0}, {0x58}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc000a6bd00 sp=0xc000a6bca8 pc=0xb1ea8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000eaa588, 0x1b3, {{0x7f0448596550}, {0x58}, {0x7f0448596550}, {0x0}, {0x0}, {0x58}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc000a6bd50 sp=0xc000a6bd00 pc=0xb1e63d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00094e270?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc000a6be28 sp=0xc000a6bd50 pc=0xb1e329
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00181d8c0?, 0xc000eaa588)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc000a6bf38 sp=0xc000a6be28 pc=0xb11b85
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000eaa588, 0x45)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc000a6bfc0 sp=0xc000a6bf38 pc=0xb1019d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc000a6bfe0 sp=0xc000a6bfc0 pc=0xb1ba65
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000a6bfe8 sp=0xc000a6bfe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1488
	pkg/sentry/kernel/task_start.go:400 +0xd9