panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xa7152e]

goroutine 111433 gp=0xc00066d6c0 m=16 mp=0xc000500e08 [running]:
panic({0x1192540?, 0x2071ac0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc00172f3a8 sp=0xc00172f2f8 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=0xc00172f408 sp=0xc00172f3a8 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc004464280)
	pkg/sentry/kernel/task_signals.go:385 +0x2e fp=0xc00172f468 sp=0xc00172f408 pc=0xa7152e
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x70?, 0xc00323ff70?)
	pkg/sentry/kernel/task_acct.go:151 +0x45 fp=0xc00172f490 sp=0xc00172f468 pc=0xa55ac5
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc00323ff70, {0x0?, {0x1?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x204 fp=0xc00172f530 sp=0xc00172f490 pc=0x812744
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc00323f808, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x10e fp=0xc00172f598 sp=0xc00172f530 pc=0xa557ee
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc000183008, 0xc00b08a380, 0xc005b802f0, 0x0, 0xc005b80300)
	pkg/sentry/kernel/thread_group.go:308 +0x370 fp=0xc00172f5d8 sp=0xc00172f598 pc=0xa7bd90
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc0070ba588, 0xc00172f978)
	pkg/sentry/kernel/task_clone.go:238 +0x13e5 fp=0xc00172f968 sp=0xc00172f5d8 pc=0xa5aba5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x7?, 0x20000980?, 0x5576e2348fa8?, 0x0?, 0x0?, 0xc008d8d9e0?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc00172fa38 sp=0xc00172f968 pc=0xc2ed1d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc0070ba588?, 0x1f?, {{0x0}, {0x20000a40}, {0x20000a80}, {0x20000ac0}, {0x20000b00}, {0x20000b00}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x2c fp=0xc00172fa78 sp=0xc00172fa38 pc=0xbe7c8c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0070ba588, 0x38, {{0x0}, {0x20000a40}, {0x20000a80}, {0x20000ac0}, {0x20000b00}, {0x20000b00}})
	pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc00172fca8 sp=0xc00172fa78 pc=0xa77897
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0070ba588, 0x38, {{0x0}, {0x20000a40}, {0x20000a80}, {0x20000ac0}, {0x20000b00}, {0x20000b00}})
	pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc00172fd00 sp=0xc00172fca8 pc=0xa78a05
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0070ba588, 0x38, {{0x0}, {0x20000a40}, {0x20000a80}, {0x20000ac0}, {0x20000b00}, {0x20000b00}})
	pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc00172fd50 sp=0xc00172fd00 pc=0xa78705
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc002cb73f0?)
	pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc00172fe28 sp=0xc00172fd50 pc=0xa78485
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc006de66c0?, 0xc0070ba588)
	pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc00172ff30 sp=0xc00172fe28 pc=0xa6dd97
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0070ba588, 0x9984)
	pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc00172ffc0 sp=0xc00172ff30 pc=0xa6c7f4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc00172ffe0 sp=0xc00172ffc0 pc=0xa762a5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc00172ffe8 sp=0xc00172ffe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 111348
	pkg/sentry/kernel/task_start.go:400 +0xc5