panic: runtime error: invalid memory address or nil pointer dereference
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x14dc1e8]

goroutine 617 gp=0xc000cc68c0 m=22 mp=0xc00057c008 [running]:
panic({0x19076a0?, 0x29b0d20?})
	GOROOT/src/runtime/panic.go:811 +0x154 fp=0xc000a28fe0 sp=0xc000a28f30 pc=0x47bb74
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:262
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:925 +0x300 fp=0xc000a29040 sp=0xc000a28fe0 pc=0x47e910
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).EventUnregister(0xc000335380, 0xc001329478)
	pkg/sentry/fsimpl/fuse/dev.go:160 +0xa8 fp=0xc000a290c0 sp=0xc000a29050 pc=0x14dc1e8
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).EventUnregister(0xc000335380, 0xc001329478)
	pkg/sentry/vfs/file_description.go:619 +0x64 fp=0xc000a290e0 sp=0xc000a290c0 pc=0xa15014
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.releaseState(0xc000c2e008, {0xc001329470, 0x1, 0x47bb4c?})
	pkg/sentry/syscalls/linux/sys_poll.go:94 +0xb8 fp=0xc000a29120 sp=0xc000a290e0 pc=0x1062478
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.pollBlock.deferwrap1()
	pkg/sentry/syscalls/linux/sys_poll.go:116 +0x5c fp=0xc000a29170 sp=0xc000a29120 pc=0x1062b7c
panic({0x19076a0?, 0x29b0d20?})
	GOROOT/src/runtime/panic.go:792 +0x124 fp=0xc000a29220 sp=0xc000a29170 pc=0x47bb44
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:262
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:925 +0x300 fp=0xc000a29280 sp=0xc000a29220 pc=0x47e910
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).EventRegister(0xc000335380, 0xc001329478)
	pkg/sentry/fsimpl/fuse/dev.go:152 +0xb0 fp=0xc000a29320 sp=0xc000a29290 pc=0x14dc040
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).EventRegister(0xc000335380, 0xc001329478)
	pkg/sentry/vfs/file_description.go:612 +0x64 fp=0xc000a29350 sp=0xc000a29320 pc=0xa14f74
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.initReadiness(0xc000c2e008, 0xc001627828, 0xc001329470, 0xc001632cb0)
	pkg/sentry/syscalls/linux/sys_poll.go:80 +0x1b8 fp=0xc000a29440 sp=0xc000a29350 pc=0x10620a8
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.pollBlock(0xc000c2e008, {0xc001627828, 0x1, 0x10651b0?}, 0xffffffffffffffff)
	pkg/sentry/syscalls/linux/sys_poll.go:119 +0x1cc fp=0xc000a29580 sp=0xc000a29440 pc=0x106269c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.doPoll(0xc000c2e008, 0x20004180, 0x1, 0xffffffffffffffff)
	pkg/sentry/syscalls/linux/sys_poll.go:194 +0x144 fp=0xc000a29630 sp=0xc000a29580 pc=0x1062ef4
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Ppoll(0xc000c2e008, 0x1?, {{0x20004180}, {0x1}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_poll.go:459 +0x1cc fp=0xc000a296f0 sp=0xc000a29630 pc=0x106474c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000c2e008, 0x49, {{0x20004180}, {0x1}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x880 fp=0xc000a299a0 sp=0xc000a296f0 pc=0xe23aa0
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000c2e008, 0x49, {{0x20004180}, {0x1}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x60 fp=0xc000a29a50 sp=0xc000a299a0 pc=0xe25480
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000c2e008, 0x49, {{0x20004180}, {0x1}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0xa8 fp=0xc000a29ac0 sp=0xc000a29a50 pc=0xe24f08
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000c2e008)
	pkg/sentry/kernel/task_syscall.go:258 +0x45c fp=0xc000a29bf0 sp=0xc000a29ac0 pc=0xe24b3c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000c2e008?, 0xc000c2e008)
	pkg/sentry/kernel/task_run.go:269 +0x1814 fp=0xc000a29e60 sp=0xc000a29bf0 pc=0xe13f74
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000c2e008, 0x49)
	pkg/sentry/kernel/task_run.go:97 +0x2f8 fp=0xc000a29fa0 sp=0xc000a29e60 pc=0xe11eb8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:416 +0x44 fp=0xc000a29fd0 sp=0xc000a29fa0 pc=0xe21aa4
runtime.goexit({})
	src/runtime/asm_arm64.s:1223 +0x4 fp=0xc000a29fd0 sp=0xc000a29fd0 pc=0x484eb4
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 611
	pkg/sentry/kernel/task_start.go:416 +0x160