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

goroutine 6173 gp=0xc000f928c0 m=26 mp=0xc00108c708 [running]:
panic({0x12ae840?, 0x2371510?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc001ad7390 sp=0xc001ad72e0 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=0xc001ad73f0 sp=0xc001ad7390 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc0010ea480)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc001ad7450 sp=0xc001ad73f0 pc=0xb16ab8
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x100014b07d8?, 0xc0034b8770?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc001ad7478 sp=0xc001ad7450 pc=0xaf6757
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc0034b8770, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc001ad7518 sp=0xc001ad7478 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc0034b8008, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc001ad7590 sp=0xc001ad7518 pc=0xaf6465
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000279008, 0xc0017a2ee0, 0xc0010d4ec0, 0x0, 0xc0010d4ed0)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc001ad75d0 sp=0xc001ad7590 pc=0xb237ec
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc0008f6c88, 0xc001ad7978)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc001ad7968 sp=0xc001ad75d0 pc=0xafc25b
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x0?, 0xc000f928c0?, 0x300000002?, 0xc001748ac0?, 0x474a0e?, 0xc000f928c0?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc001ad7a38 sp=0xc001ad7968 pc=0xcfda1d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0x49a099?, 0xc001748ad0?, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x68 fp=0xc001ad7a78 sp=0xc001ad7a38 pc=0xcbda68
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0008f6c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc001ad7ca8 sp=0xc001ad7a78 pc=0xb1e08b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0008f6c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc001ad7d00 sp=0xc001ad7ca8 pc=0xb1f62e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0008f6c88, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc001ad7d50 sp=0xc001ad7d00 pc=0xb1f1dd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc002c2cd00?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc001ad7e28 sp=0xc001ad7d50 pc=0xb1eec9
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001242360?, 0xc0008f6c88)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc001ad7f38 sp=0xc001ad7e28 pc=0xb12725
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0008f6c88, 0x37a)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc001ad7fc0 sp=0xc001ad7f38 pc=0xb10d3d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc001ad7fe0 sp=0xc001ad7fc0 pc=0xb1c605
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc001ad7fe8 sp=0xc001ad7fe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 6193
	pkg/sentry/kernel/task_start.go:400 +0xd9