panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb16ab8]

goroutine 6345 gp=0xc000e1e8c0 m=43 mp=0xc001160708 [running]:
panic({0x12ae840?, 0x2371510?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000c03390 sp=0xc000c032e0 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=0xc000c033f0 sp=0xc000c03390 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000130500)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc000c03450 sp=0xc000c033f0 pc=0xb16ab8
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x1000065d9d8?, 0xc000d0d370?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc000c03478 sp=0xc000c03450 pc=0xaf6757
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000d0d370, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc000c03518 sp=0xc000c03478 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000d0cc08, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc000c03590 sp=0xc000c03518 pc=0xaf6465
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000271008, 0xc000a32bd0, 0xc0020de990, 0x0, 0xc0020de9b0)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc000c035d0 sp=0xc000c03590 pc=0xb237ec
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc001231208, 0xc000c03978)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc000c03968 sp=0xc000c035d0 pc=0xafc25b
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x0?, 0xc000e1e8c0?, 0x300000002?, 0xc000c03ac0?, 0x474a0e?, 0xc000e1e8c0?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc000c03a38 sp=0xc000c03968 pc=0xcfda1d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0x49a099?, 0xc000c03ad0?, {{0x8000000}, {0x200001a0}, {0x200000c0}, {0x200001c0}, {0x20000200}, {0x20000200}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x68 fp=0xc000c03a78 sp=0xc000c03a38 pc=0xcbda68
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001231208, 0x38, {{0x8000000}, {0x200001a0}, {0x200000c0}, {0x200001c0}, {0x20000200}, {0x20000200}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc000c03ca8 sp=0xc000c03a78 pc=0xb1e08b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001231208, 0x38, {{0x8000000}, {0x200001a0}, {0x200000c0}, {0x200001c0}, {0x20000200}, {0x20000200}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc000c03d00 sp=0xc000c03ca8 pc=0xb1f62e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001231208, 0x38, {{0x8000000}, {0x200001a0}, {0x200000c0}, {0x200001c0}, {0x20000200}, {0x20000200}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc000c03d50 sp=0xc000c03d00 pc=0xb1f1dd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0009195f0?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc000c03e28 sp=0xc000c03d50 pc=0xb1eec9
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0009a34d0?, 0xc001231208)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc000c03f38 sp=0xc000c03e28 pc=0xb12725
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001231208, 0x3cf)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc000c03fc0 sp=0xc000c03f38 pc=0xb10d3d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc000c03fe0 sp=0xc000c03fc0 pc=0xb1c605
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000c03fe8 sp=0xc000c03fe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 6318
	pkg/sentry/kernel/task_start.go:400 +0xd9