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=0xa63f2c]

goroutine 29035 gp=0x40019a21c0 m=94 mp=0x40021cb808 [running]:
panic({0xd0fc20?, 0x1ca0d70?})
	GOROOT/src/runtime/panic.go:811 +0x154 fp=0x4000473500 sp=0x4000473450 pc=0x87504
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:262
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:925 +0x300 fp=0x4000473560 sp=0x4000473500 pc=0x89fe0
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).EventUnregister(0x40004735f8?, 0x4e3bc?)
	pkg/sentry/fsimpl/fuse/dev.go:160 +0xbc fp=0x40004735b0 sp=0x4000473570 pc=0xa63f2c
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).EventUnregister(...)
	pkg/sentry/vfs/file_description.go:619
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.releaseState(0x400065f208, {0x4000d10c00, 0x1, 0x40019a21c0?})
	pkg/sentry/syscalls/linux/sys_poll.go:94 +0x64 fp=0x4000473600 sp=0x40004735b0 pc=0x7aae64
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.pollBlock.deferwrap1()
	pkg/sentry/syscalls/linux/sys_poll.go:116 +0x34 fp=0x4000473630 sp=0x4000473600 pc=0x7ab5e4
panic({0xd0fc20?, 0x1ca0d70?})
	GOROOT/src/runtime/panic.go:792 +0x124 fp=0x40004736e0 sp=0x4000473630 pc=0x874d4
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:262
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:925 +0x300 fp=0x4000473740 sp=0x40004736e0 pc=0x89fe0
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).EventRegister(0x4001f79380?, 0x4?)
	pkg/sentry/fsimpl/fuse/dev.go:152 +0xc0 fp=0x40004737a0 sp=0x4000473750 pc=0xa63db0
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).EventRegister(...)
	pkg/sentry/vfs/file_description.go:612
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.initReadiness(0x400065f208, 0x40020bae48, 0x4000d10c00, 0x40022e2e00)
	pkg/sentry/syscalls/linux/sys_poll.go:80 +0xd4 fp=0x4000473810 sp=0x40004737a0 pc=0x7aa974
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.pollBlock(0x400065f208, {0x40020bae48, 0x1, 0x4000473968?}, 0x989680)
	pkg/sentry/syscalls/linux/sys_poll.go:119 +0x138 fp=0x4000473900 sp=0x4000473810 pc=0x7ab2d8
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.doPoll(0x400065f208, 0x20002c00, 0x1, 0x989680)
	pkg/sentry/syscalls/linux/sys_poll.go:194 +0x94 fp=0x4000473980 sp=0x4000473900 pc=0x7ab7d4
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Ppoll(0x400065f208, 0x14d5f8?, {{0x20002c00}, {0x1}, {0x20002c40}, {0x20002c80}, {0x8}, {0x0}})
	pkg/sentry/syscalls/linux/sys_poll.go:459 +0xb0 fp=0x4000473a30 sp=0x4000473980 pc=0x7ac900
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x400065f208, 0x49, {{0x20002c00}, {0x1}, {0x20002c40}, {0x20002c80}, {0x8}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x4dc fp=0x4000473c60 sp=0x4000473a30 pc=0x63d63c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x400065f208, 0x49, {{0x20002c00}, {0x1}, {0x20002c40}, {0x20002c80}, {0x8}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x3c fp=0x4000473cc0 sp=0x4000473c60 pc=0x63e4ac
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x400065f208, 0x49, {{0x20002c00}, {0x1}, {0x20002c40}, {0x20002c80}, {0x8}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x58 fp=0x4000473d10 sp=0x4000473cc0 pc=0x63e1d8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x40016eaf70?)
	pkg/sentry/kernel/task_syscall.go:258 +0x23c fp=0x4000473df0 sp=0x4000473d10 pc=0x63df8c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x4001685050?, 0x400065f208)
	pkg/sentry/kernel/task_run.go:269 +0xc60 fp=0x4000473f10 sp=0x4000473df0 pc=0x634bc0
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x400065f208, 0x2118)
	pkg/sentry/kernel/task_run.go:97 +0x1d4 fp=0x4000473fb0 sp=0x4000473f10 pc=0x633934
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:416 +0x2c fp=0x4000473fd0 sp=0x4000473fb0 pc=0x63c29c
runtime.goexit({})
	src/runtime/asm_arm64.s:1223 +0x4 fp=0x4000473fd0 sp=0x4000473fd0 pc=0x90394
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 29023
	pkg/sentry/kernel/task_start.go:416 +0xc0