Extracting prog: 27.989417946s Minimizing prog: 1m30.231645154s Simplifying prog options: 1m11.711495642s Extracting C: 12.103516905s 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:4 Slowdown:1 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}}): setrlimit-syz_clone detailed listing: executing program 0: setrlimit(0x0, &(0x7f0000000980)={0x0, 0x62}) 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=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): setrlimit detailed listing: executing program 0: setrlimit(0x0, &(0x7f0000000980)={0x0, 0x62}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): setrlimit-syz_clone detailed listing: executing program 0: setrlimit(0x0, 0x0) syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): setrlimit-syz_clone program did not crash simplifying guilty program options testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): setrlimit-syz_clone detailed listing: executing program 0: setrlimit(0x0, &(0x7f0000000980)={0x0, 0x62}) 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=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 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}}): setrlimit-syz_clone 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: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}}): setrlimit-syz_clone detailed listing: executing program 0: setrlimit(0x0, &(0x7f0000000980)={0x0, 0x62}) 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=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 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}}): setrlimit-syz_clone program did not crash reproducing took 3m40.770506716s repro crashed as (corrupted=false): panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xf45465] goroutine 349 gp=0xc0005b3500 m=8 mp=0xc000472008 [running]: panic({0x1b67e00?, 0x2b48150?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000bb6ce8 sp=0xc000bb6c38 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=0xc000bb6d48 sp=0xc000bb6ce8 pc=0x47adf9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000b5e900) pkg/sentry/kernel/task_signals.go:385 +0x45 fp=0xc000bb6de0 sp=0xc000bb6d48 pc=0xf45465 gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc000aba3b0, 0xc000aba370?) pkg/sentry/kernel/task_acct.go:151 +0xca fp=0xc000bb6e10 sp=0xc000bb6de0 pc=0xf1354a gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000aba370, {0x0?, {0x0?}, 0x1f706c0?}, 0x0) pkg/sentry/ktime/synthetic_timer.go:139 +0x2c5 fp=0xc000bb6ee8 sp=0xc000bb6e10 pc=0xb18565 gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000ab9c08, 0x0) pkg/sentry/kernel/task_acct.go:103 +0x179 fp=0xc000bb6f78 sp=0xc000bb6ee8 pc=0xf13079 gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000283008, 0xc000db20e0, 0xc00069ae20, 0x0, 0xc00069ae30) pkg/sentry/kernel/thread_group.go:308 +0x75f fp=0xc000bb6fe0 sp=0xc000bb6f78 pc=0xf5a19f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000cd2588, 0xc000bb7598) pkg/sentry/kernel/task_clone.go:238 +0x2565 fp=0xc000bb7578 sp=0xc000bb6fe0 pc=0xf1b645 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc000cd2588, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/syscalls/linux/sys_thread.go:215 +0x125 fp=0xc000bb7668 sp=0xc000bb7578 pc=0x12165e5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc000cd2588, 0x0?, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x4e fp=0xc000bb76c8 sp=0xc000bb7668 pc=0x11a646e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000cd2588, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 fp=0xc000bb7960 sp=0xc000bb76c8 pc=0xf51d95 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000cd2588, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 fp=0xc000bb7a08 sp=0xc000bb7960 pc=0xf53bf2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000cd2588, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 fp=0xc000bb7a78 sp=0xc000bb7a08 pc=0xf535f4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000cd2588) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 fp=0xc000bb7b98 sp=0xc000bb7a78 pc=0xf53190 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000cd2588?, 0xc000cd2588) pkg/sentry/kernel/task_run.go:269 +0x1fae fp=0xc000bb7e70 sp=0xc000bb7b98 pc=0xf3f2ae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000cd2588, 0x3b) pkg/sentry/kernel/task_run.go:97 +0x4fb fp=0xc000bb7fb0 sp=0xc000bb7e70 pc=0xf3c91b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc000bb7fe0 sp=0xc000bb7fb0 pc=0xf4fb65 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000bb7fe8 sp=0xc000bb7fe0 pc=0x4819a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 388 pkg/sentry/kernel/task_start.go:400 +0x165 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=0xf45465] goroutine 349 gp=0xc0005b3500 m=8 mp=0xc000472008 [running]: panic({0x1b67e00?, 0x2b48150?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000bb6ce8 sp=0xc000bb6c38 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=0xc000bb6d48 sp=0xc000bb6ce8 pc=0x47adf9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000b5e900) pkg/sentry/kernel/task_signals.go:385 +0x45 fp=0xc000bb6de0 sp=0xc000bb6d48 pc=0xf45465 gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xc000aba3b0, 0xc000aba370?) pkg/sentry/kernel/task_acct.go:151 +0xca fp=0xc000bb6e10 sp=0xc000bb6de0 pc=0xf1354a gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000aba370, {0x0?, {0x0?}, 0x1f706c0?}, 0x0) pkg/sentry/ktime/synthetic_timer.go:139 +0x2c5 fp=0xc000bb6ee8 sp=0xc000bb6e10 pc=0xb18565 gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000ab9c08, 0x0) pkg/sentry/kernel/task_acct.go:103 +0x179 fp=0xc000bb6f78 sp=0xc000bb6ee8 pc=0xf13079 gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000283008, 0xc000db20e0, 0xc00069ae20, 0x0, 0xc00069ae30) pkg/sentry/kernel/thread_group.go:308 +0x75f fp=0xc000bb6fe0 sp=0xc000bb6f78 pc=0xf5a19f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000cd2588, 0xc000bb7598) pkg/sentry/kernel/task_clone.go:238 +0x2565 fp=0xc000bb7578 sp=0xc000bb6fe0 pc=0xf1b645 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0xc000cd2588, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/syscalls/linux/sys_thread.go:215 +0x125 fp=0xc000bb7668 sp=0xc000bb7578 pc=0x12165e5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc000cd2588, 0x0?, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x4e fp=0xc000bb76c8 sp=0xc000bb7668 pc=0x11a646e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000cd2588, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 fp=0xc000bb7960 sp=0xc000bb76c8 pc=0xf51d95 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000cd2588, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 fp=0xc000bb7a08 sp=0xc000bb7960 pc=0xf53bf2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000cd2588, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 fp=0xc000bb7a78 sp=0xc000bb7a08 pc=0xf535f4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000cd2588) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 fp=0xc000bb7b98 sp=0xc000bb7a78 pc=0xf53190 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000cd2588?, 0xc000cd2588) pkg/sentry/kernel/task_run.go:269 +0x1fae fp=0xc000bb7e70 sp=0xc000bb7b98 pc=0xf3f2ae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000cd2588, 0x3b) pkg/sentry/kernel/task_run.go:97 +0x4fb fp=0xc000bb7fb0 sp=0xc000bb7e70 pc=0xf3c91b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc000bb7fe0 sp=0xc000bb7fb0 pc=0xf4fb65 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000bb7fe8 sp=0xc000bb7fe0 pc=0x4819a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 388 pkg/sentry/kernel/task_start.go:400 +0x165