Extracting prog: 56.795833423s
Minimizing prog: 2m49.961561151s
Simplifying prog options: 2m45.556445461s
Extracting C: 32.499917985s
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, &(0x7f0000000a80)={0x0, 0x140000}, 0x0)
syz_clone(0x0, 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=56.587396738s, {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, &(0x7f0000000a80)={0x0, 0x140000}, 0x0)

program did not crash
testing program (duration=56.587396738s, {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(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=56.587396738s, {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(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=56.587396738s, {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=56.587396738s, {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, &(0x7f0000000a80)={0x0, 0x140000}, 0x0)
syz_clone(0x0, 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=56.587396738s, {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=56.587396738s, {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, &(0x7f0000000a80)={0x0, 0x140000}, 0x0)
syz_clone(0x0, 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=56.587396738s, {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 7m29.825136766s
repro crashed as (corrupted=false):
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xfe74d3]

goroutine 391 gp=0xc000935180 m=16 mp=0xc000203808 [running]:
panic({0x1c598a0?, 0x2c2cca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc00148ad60 sp=0xc00148acb0 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=0xc00148adc0 sp=0xc00148ad60 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc00140ae80)
	pkg/sentry/kernel/task_signals.go:385 +0x53 fp=0xc00148ae50 sp=0xc00148adc0 pc=0xfe74d3
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc0011b4bb0, 0xc0011b4b70?)
	pkg/sentry/kernel/task_acct.go:151 +0xea fp=0xc00148ae80 sp=0xc00148ae50 pc=0xfb2a2a
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc0011b4b70, {0x0?, {0x0?}, 0xc0010c20e0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x342 fp=0xc00148af58 sp=0xc00148ae80 pc=0xb71562
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc0011b4408, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x18a fp=0xc00148b000 sp=0xc00148af58 pc=0xfb250a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc0001fd008, 0xc000ba4c40, 0xc0010f2480, 0x0, 0xc0010f2490)
	pkg/sentry/kernel/thread_group.go:308 +0x709 fp=0xc00148b078 sp=0xc00148b000 pc=0xffdd49
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc0011c0c88, 0xc00148b5a0)
	pkg/sentry/kernel/task_clone.go:238 +0x217a fp=0xc00148b580 sp=0xc00148b078 pc=0xfbb5ba
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc0011c0c88, 0x0, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0x130 fp=0xc00148b670 sp=0xc00148b580 pc=0x12c7050
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc0011c0c88, 0x0?, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0xef fp=0xc00148b6e8 sp=0xc00148b670 pc=0x126332f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0011c0c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc00148b998 sp=0xc00148b6e8 pc=0xff463f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0011c0c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc00148ba40 sp=0xc00148b998 pc=0xff6765
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0011c0c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc00148bab0 sp=0xc00148ba40 pc=0xff6087
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0011c0c88)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc00148bbd0 sp=0xc00148bab0 pc=0xff5bea
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0011c0c88?, 0xc0011c0c88)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc00148be78 sp=0xc00148bbd0 pc=0xfe0675
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0011c0c88, 0x44)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc00148bfb0 sp=0xc00148be78 pc=0xfdd99b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc00148bfe0 sp=0xc00148bfb0 pc=0xff1f45
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc00148bfe8 sp=0xc00148bfe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 350
	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=0xfe74d3]

goroutine 391 gp=0xc000935180 m=16 mp=0xc000203808 [running]:
panic({0x1c598a0?, 0x2c2cca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc00148ad60 sp=0xc00148acb0 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=0xc00148adc0 sp=0xc00148ad60 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc00140ae80)
	pkg/sentry/kernel/task_signals.go:385 +0x53 fp=0xc00148ae50 sp=0xc00148adc0 pc=0xfe74d3
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc0011b4bb0, 0xc0011b4b70?)
	pkg/sentry/kernel/task_acct.go:151 +0xea fp=0xc00148ae80 sp=0xc00148ae50 pc=0xfb2a2a
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc0011b4b70, {0x0?, {0x0?}, 0xc0010c20e0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x342 fp=0xc00148af58 sp=0xc00148ae80 pc=0xb71562
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc0011b4408, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x18a fp=0xc00148b000 sp=0xc00148af58 pc=0xfb250a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc0001fd008, 0xc000ba4c40, 0xc0010f2480, 0x0, 0xc0010f2490)
	pkg/sentry/kernel/thread_group.go:308 +0x709 fp=0xc00148b078 sp=0xc00148b000 pc=0xffdd49
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc0011c0c88, 0xc00148b5a0)
	pkg/sentry/kernel/task_clone.go:238 +0x217a fp=0xc00148b580 sp=0xc00148b078 pc=0xfbb5ba
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc0011c0c88, 0x0, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0x130 fp=0xc00148b670 sp=0xc00148b580 pc=0x12c7050
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc0011c0c88, 0x0?, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0xef fp=0xc00148b6e8 sp=0xc00148b670 pc=0x126332f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0011c0c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc00148b998 sp=0xc00148b6e8 pc=0xff463f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0011c0c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc00148ba40 sp=0xc00148b998 pc=0xff6765
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0011c0c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc00148bab0 sp=0xc00148ba40 pc=0xff6087
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0011c0c88)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc00148bbd0 sp=0xc00148bab0 pc=0xff5bea
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0011c0c88?, 0xc0011c0c88)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc00148be78 sp=0xc00148bbd0 pc=0xfe0675
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0011c0c88, 0x44)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc00148bfb0 sp=0xc00148be78 pc=0xfdd99b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc00148bfe0 sp=0xc00148bfb0 pc=0xff1f45
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc00148bfe8 sp=0xc00148bfe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 350
	pkg/sentry/kernel/task_start.go:400 +0x185