panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb16c78]

goroutine 2895 gp=0xc001360000 m=24 mp=0xc000101c08 [running]:
panic({0x12ad7c0?, 0x236f6b0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000d35390 sp=0xc000d352e0 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=0xc000d353f0 sp=0xc000d35390 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000f9c180)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc000d35450 sp=0xc000d353f0 pc=0xb16c78
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x10001901a98?, 0xc00116a770?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc000d35478 sp=0xc000d35450 pc=0xaf6917
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc00116a770, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc000d35518 sp=0xc000d35478 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc00116a008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc000d35590 sp=0xc000d35518 pc=0xaf6625
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc0001ab008, 0xc00182ce00, 0xc0007be5a0, 0x0, 0xc0007be5c0)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc000d355d0 sp=0xc000d35590 pc=0xb239ac
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000d06008, 0xc000d35978)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc000d35968 sp=0xc000d355d0 pc=0xafc41b
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x0?, 0x57?, 0x558d2686ffa8?, 0x0?, 0x0?, 0xc001f91a38?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc000d35a38 sp=0xc000d35968 pc=0xcfdbdd
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc000d06008?, 0xc000b0f8f8?, {{0x4928c000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x68 fp=0xc000d35a78 sp=0xc000d35a38 pc=0xcbdc28
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000d06008, 0x38, {{0x4928c000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc000d35ca8 sp=0xc000d35a78 pc=0xb1e24b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000d06008, 0x38, {{0x4928c000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc000d35d00 sp=0xc000d35ca8 pc=0xb1f7ee
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000d06008, 0x38, {{0x4928c000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc000d35d50 sp=0xc000d35d00 pc=0xb1f39d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000db02c0?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc000d35e28 sp=0xc000d35d50 pc=0xb1f089
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a37dd0?, 0xc000d06008)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc000d35f38 sp=0xc000d35e28 pc=0xb128e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000d06008, 0x2a2)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc000d35fc0 sp=0xc000d35f38 pc=0xb10efd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc000d35fe0 sp=0xc000d35fc0 pc=0xb1c7c5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000d35fe8 sp=0xc000d35fe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 2951
	pkg/sentry/kernel/task_start.go:400 +0xd9