panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb16cd8]

goroutine 47811 gp=0xc001661c00 m=44 mp=0xc0008d6a08 [running]:
panic({0x12ad960?, 0x236f7d0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc002c9d390 sp=0xc002c9d2e0 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=0xc002c9d3f0 sp=0xc002c9d390 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc002194c80)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc002c9d450 sp=0xc002c9d3f0 pc=0xb16cd8
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x10003234b98?, 0xc001cbd770?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc002c9d478 sp=0xc002c9d450 pc=0xaf6977
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc001cbd770, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc002c9d518 sp=0xc002c9d478 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc001cbd008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc002c9d590 sp=0xc002c9d518 pc=0xaf6685
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000239008, 0xc002dda380, 0xc000b889b0, 0x11, 0xc000b889d0)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc002c9d5d0 sp=0xc002c9d590 pc=0xb23a0c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc001a68588, 0xc002c9d978)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc002c9d968 sp=0xc002c9d5d0 pc=0xafc47b
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x0?, 0xc001661c00?, 0x300000002?, 0xc002c9dac0?, 0x474a0e?, 0xc001661c00?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc002c9da38 sp=0xc002c9d968 pc=0xcfe1fd
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0x49a099?, 0xc002c9dad0?, {{0x11}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x68 fp=0xc002c9da78 sp=0xc002c9da38 pc=0xcbe248
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001a68588, 0x38, {{0x11}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc002c9dca8 sp=0xc002c9da78 pc=0xb1e2ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001a68588, 0x38, {{0x11}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc002c9dd00 sp=0xc002c9dca8 pc=0xb1f84e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001a68588, 0x38, {{0x11}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc002c9dd50 sp=0xc002c9dd00 pc=0xb1f3fd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc003545930?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc002c9de28 sp=0xc002c9dd50 pc=0xb1f0e9
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001953710?, 0xc001a68588)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc002c9df38 sp=0xc002c9de28 pc=0xb12945
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001a68588, 0x1b01)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc002c9dfc0 sp=0xc002c9df38 pc=0xb10f5d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc002c9dfe0 sp=0xc002c9dfc0 pc=0xb1c825
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc002c9dfe8 sp=0xc002c9dfe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 47793
	pkg/sentry/kernel/task_start.go:400 +0xd9