panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x6415ec] goroutine 1278 gp=0x40005b8c40 m=15 mp=0x40001ad108 [running]: panic({0xcd9020?, 0x1b7e880?}) bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x154 fp=0x400165d320 sp=0x400165d270 pc=0x84234 runtime.panicmem(...) bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:262 runtime.sigpanic() bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/signal_unix.go:900 +0x300 fp=0x400165d380 sp=0x400165d320 pc=0x86a40 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0x40016e7600) pkg/sentry/kernel/task_signals.go:385 +0x2c fp=0x400165d3f0 sp=0x400165d390 pc=0x6415ec gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0xfffef158b708?, 0x40016da370?) pkg/sentry/kernel/task_acct.go:151 +0x54 fp=0x400165d420 sp=0x400165d3f0 pc=0x626a34 gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0x40016da370, {0x48?, {0x0?}, 0x1?}, 0x0) pkg/sentry/ktime/synthetic_timer.go:139 +0x204 fp=0x400165d4c0 sp=0x400165d420 pc=0x3f9444 gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0x40016d9c08, 0x0) pkg/sentry/kernel/task_acct.go:103 +0x148 fp=0x400165d530 sp=0x400165d4c0 pc=0x626758 gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0x40001fb008, 0x400132dab0, 0x4000d87b60, 0x0, 0x4000d87b70) pkg/sentry/kernel/thread_group.go:308 +0x2ec fp=0x400165d580 sp=0x400165d530 pc=0x64b8dc gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0x4001333908, 0x400165d938) pkg/sentry/kernel/task_clone.go:238 +0xf5c fp=0x400165d920 sp=0x400165d580 pc=0x62b34c gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x4001333908?, 0xf90f0c800000?, 0x400050da48?, 0x56af0?, 0x400050da48?, 0x56ae4?) pkg/sentry/syscalls/linux/sys_thread.go:215 +0x84 fp=0x400165d9f0 sp=0x400165d920 pc=0x7da4f4 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0x400050dad8?, 0x848f0?, {{0x24204400}, {0x40}, {0x0}, {0x0}, {0x0}, {0xe3f12c3665f0}}) pkg/sentry/syscalls/linux/sys_clone_arm64.go:36 +0x34 fp=0x400165da30 sp=0x400165d9f0 pc=0x79e714 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x4001333908, 0xdc, {{0x24204400}, {0x40}, {0x0}, {0x0}, {0x0}, {0xe3f12c3665f0}}) pkg/sentry/kernel/task_syscall.go:143 +0x4e8 fp=0x400165dc60 sp=0x400165da30 pc=0x647678 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x4001333908, 0xdc, {{0x24204400}, {0x40}, {0x0}, {0x0}, {0x0}, {0xe3f12c3665f0}}) pkg/sentry/kernel/task_syscall.go:323 +0x3c fp=0x400165dcc0 sp=0x400165dc60 pc=0x6485ac gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x4001333908, 0xdc, {{0x24204400}, {0x40}, {0x0}, {0x0}, {0x0}, {0xe3f12c3665f0}}) pkg/sentry/kernel/task_syscall.go:283 +0x58 fp=0x400165dd10 sp=0x400165dcc0 pc=0x648228 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x4001022bb0?) pkg/sentry/kernel/task_syscall.go:258 +0x23c fp=0x400165ddf0 sp=0x400165dd10 pc=0x647fdc gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x4000f439e0?, 0x4001333908) pkg/sentry/kernel/task_run.go:269 +0xce4 fp=0x400165df10 sp=0x400165ddf0 pc=0x63df84 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x4001333908, 0x1ef) pkg/sentry/kernel/task_run.go:97 +0x1d4 fp=0x400165dfb0 sp=0x400165df10 pc=0x63cc14 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:400 +0x2c fp=0x400165dfd0 sp=0x400165dfb0 pc=0x64620c runtime.goexit({}) src/runtime/asm_arm64.s:1223 +0x4 fp=0x400165dfd0 sp=0x400165dfd0 pc=0x8d484 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1379 pkg/sentry/kernel/task_start.go:400 +0xc4