panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xa714ee]

goroutine 454 gp=0xc000814540 m=18 mp=0xc0003f7108 [running]:
panic({0x1192560?, 0x2072ac0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc00049b3a8 sp=0xc00049b2f8 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=0xc00049b408 sp=0xc00049b3a8 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc000af2680)
	pkg/sentry/kernel/task_signals.go:385 +0x2e fp=0xc00049b468 sp=0xc00049b408 pc=0xa714ee
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x70?, 0xc000942b70?)
	pkg/sentry/kernel/task_acct.go:151 +0x45 fp=0xc00049b490 sp=0xc00049b468 pc=0xa55a85
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000942b70, {0x0?, {0x1?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x204 fp=0xc00049b530 sp=0xc00049b490 pc=0x812744
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000942408, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x10e fp=0xc00049b598 sp=0xc00049b530 pc=0xa557ae
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000207008, 0xc0002d2cb0, 0xc00019a4e0, 0x0, 0xc00019a510)
	pkg/sentry/kernel/thread_group.go:308 +0x370 fp=0xc00049b5d8 sp=0xc00049b598 pc=0xa7bd50
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc000b40588, 0xc00049b978)
	pkg/sentry/kernel/task_clone.go:238 +0x13e5 fp=0xc00049b968 sp=0xc00049b5d8 pc=0xa5ab65
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x300000002?, 0xc0005d9ab0?, 0x474a0e?, 0xc000814540?, 0x200000003?, 0x0?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc00049ba38 sp=0xc00049b968 pc=0xc2ecfd
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc0005d9b10?, 0xc0005d9b10?, {{0x24204400}, {0x40}, {0x0}, {0x0}, {0x0}, {0x7fa2d2ed46c0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x2c fp=0xc00049ba78 sp=0xc00049ba38 pc=0xbe7c6c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000b40588, 0x38, {{0x24204400}, {0x40}, {0x0}, {0x0}, {0x0}, {0x7fa2d2ed46c0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc00049bca8 sp=0xc00049ba78 pc=0xa77857
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000b40588, 0x38, {{0x24204400}, {0x40}, {0x0}, {0x0}, {0x0}, {0x7fa2d2ed46c0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc00049bd00 sp=0xc00049bca8 pc=0xa789c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000b40588, 0x38, {{0x24204400}, {0x40}, {0x0}, {0x0}, {0x0}, {0x7fa2d2ed46c0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc00049bd50 sp=0xc00049bd00 pc=0xa786c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000ba4820?)
	pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc00049be28 sp=0xc00049bd50 pc=0xa78445
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000536900?, 0xc000b40588)
	pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc00049bf30 sp=0xc00049be28 pc=0xa6dd57
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000b40588, 0x49)
	pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc00049bfc0 sp=0xc00049bf30 pc=0xa6c7b4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc00049bfe0 sp=0xc00049bfc0 pc=0xa76265
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc00049bfe8 sp=0xc00049bfe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 483
	pkg/sentry/kernel/task_start.go:400 +0xc5