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

goroutine 10903 gp=0xc001978380 m=40 mp=0xc00100d108 [running]:
panic({0x12ae840?, 0x2371510?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000b5f390 sp=0xc000b5f2e0 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=0xc000b5f3f0 sp=0xc000b5f390 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc001deb780)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc000b5f450 sp=0xc000b5f3f0 pc=0xb16ab8
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x10000477df8?, 0xc001929f70?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc000b5f478 sp=0xc000b5f450 pc=0xaf6757
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc001929f70, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc000b5f518 sp=0xc000b5f478 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc001929808, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc000b5f590 sp=0xc000b5f518 pc=0xaf6465
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc00025b008, 0xc001e1ac40, 0xc002b78370, 0x0, 0xc002b78380)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc000b5f5d0 sp=0xc000b5f590 pc=0xb237ec
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000e9c008, 0xc000b5f978)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc000b5f968 sp=0xc000b5f5d0 pc=0xafc25b
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x0?, 0xc001978380?, 0x300000002?, 0xc000b5fac0?, 0x474a0e?, 0xc001978380?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc000b5fa38 sp=0xc000b5f968 pc=0xcfda1d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0x49a099?, 0xc000b5fad0?, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x68 fp=0xc000b5fa78 sp=0xc000b5fa38 pc=0xcbda68
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000e9c008, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc000b5fca8 sp=0xc000b5fa78 pc=0xb1e08b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000e9c008, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc000b5fd00 sp=0xc000b5fca8 pc=0xb1f62e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000e9c008, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc000b5fd50 sp=0xc000b5fd00 pc=0xb1f1dd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001a9ba00?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc000b5fe28 sp=0xc000b5fd50 pc=0xb1eec9
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0037a6240?, 0xc000e9c008)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc000b5ff38 sp=0xc000b5fe28 pc=0xb12725
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000e9c008, 0x7da)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc000b5ffc0 sp=0xc000b5ff38 pc=0xb10d3d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc000b5ffe0 sp=0xc000b5ffc0 pc=0xb1c605
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000b5ffe8 sp=0xc000b5ffe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 10932
	pkg/sentry/kernel/task_start.go:400 +0xd9