panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x6d7d08] goroutine 23750 gp=0x40011ed880 m=114 mp=0x4000803808 [running]: panic({0xdd9280?, 0x1e9d520?}) bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x154 fp=0x4000b1b310 sp=0x4000b1b260 pc=0x84234 runtime.panicmem(...) bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:262 runtime.sigpanic() bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/signal_unix.go:900 +0x300 fp=0x4000b1b370 sp=0x4000b1b310 pc=0x86a40 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0x4001507b00) pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0x4000b1b3e0 sp=0x4000b1b380 pc=0x6d7d08 gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x1?, 0x4001d5cb70?) pkg/sentry/kernel/task_acct.go:151 +0x68 fp=0x4000b1b410 sp=0x4000b1b3e0 pc=0x6b9858 gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0x4001d5cb70, {0x0?, {0x4000b1b528?}, 0x6e3c70?}, 0x0) pkg/sentry/ktime/synthetic_timer.go:139 +0x224 fp=0x4000b1b4b0 sp=0x4000b1b410 pc=0x43f0b4 gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0x4001d5c408, 0x0) pkg/sentry/kernel/task_acct.go:103 +0x130 fp=0x4000b1b530 sp=0x4000b1b4b0 pc=0x6b9500 gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0x40001cb008, 0x400231b490, 0x4001366cd0, 0x0, 0x4001366ce0) pkg/sentry/kernel/thread_group.go:308 +0x328 fp=0x4000b1b580 sp=0x4000b1b530 pc=0x6e3e28 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0x4001a4d908, 0x4000b1b938) pkg/sentry/kernel/task_clone.go:238 +0x1030 fp=0x4000b1b920 sp=0x4000b1b580 pc=0x6beb20 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x400082bb74?, 0x0?, 0x400082ba68?, 0xab35c?, 0x40011ed880?, 0x200000003?) pkg/sentry/syscalls/linux/sys_thread.go:215 +0x90 fp=0x4000b1b9f0 sp=0x4000b1b920 pc=0x8962a0 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0x400082bab8?, 0x14e148?, {{0xc00e4000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_clone_arm64.go:36 +0x68 fp=0x4000b1ba30 sp=0x4000b1b9f0 pc=0x85f488 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x4001a4d908, 0xdc, {{0xc00e4000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x664 fp=0x4000b1bc60 sp=0x4000b1ba30 pc=0x6dec34 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x4001a4d908, 0xdc, {{0xc00e4000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x48 fp=0x4000b1bcc0 sp=0x4000b1bc60 pc=0x6dfef8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x4001a4d908, 0xdc, {{0xc00e4000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x7c fp=0x4000b1bd10 sp=0x4000b1bcc0 pc=0x6dfabc gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x40027cc8f0?) pkg/sentry/kernel/task_syscall.go:258 +0x2e8 fp=0x4000b1bdf0 sp=0x4000b1bd10 pc=0x6df7e8 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x40012dd0e0?, 0x4001a4d908) pkg/sentry/kernel/task_run.go:269 +0x10ac fp=0x4000b1bf10 sp=0x4000b1bdf0 pc=0x6d3c4c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x4001a4d908, 0x12ce) pkg/sentry/kernel/task_run.go:97 +0x250 fp=0x4000b1bfb0 sp=0x4000b1bf10 pc=0x6d24f0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:400 +0x2c fp=0x4000b1bfd0 sp=0x4000b1bfb0 pc=0x6dd3fc runtime.goexit({}) src/runtime/asm_arm64.s:1223 +0x4 fp=0x4000b1bfd0 sp=0x4000b1bfd0 pc=0x8d484 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 23740 pkg/sentry/kernel/task_start.go:400 +0xd8