syzbot

panic: WARNING: circular locking detected: stack.nicRWMutex -> stack.packetsPendingLinkResolutionMutex:
goroutine 281 [running]:
gvisor.dev/gvisor/pkg/tcpip/stack.(*packetsPendingLinkResolutionMutex).Lock(0xc000b0cda0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/tcpip/stack/packets_pending_link_resolution_mutex.go:33 +0x45
gvisor.dev/gvisor/pkg/tcpip/stack.(*packetsPendingLinkResolution).cancel(0xc000b0cd98)
	pkg/tcpip/stack/pending_packets.go:75 +0x5c
gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).remove(0xc000b0cc00)
	pkg/tcpip/stack/nic.go:314 +0x1a5
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).removeNICLocked(0xc0003d2700, 0x3)
	pkg/tcpip/stack/stack.go:976 +0x1dd
gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).RemoveNIC(0xc0003d2700, 0x1133a39?)
	pkg/tcpip/stack/stack.go:949 +0xad
gvisor.dev/gvisor/pkg/tcpip/link/tun.(*tunEndpoint).DecRef.func1()
	pkg/tcpip/link/tun/device.go:347 +0x89
gvisor.dev/gvisor/pkg/tcpip/link/tun.(*tunEndpointRefs).DecRef(0xc0003b6ac0, 0xc00080f8f0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/tcpip/link/tun/tun_endpoint_refs.go:131 +0x5f
gvisor.dev/gvisor/pkg/tcpip/link/tun.(*tunEndpoint).DecRef(0xc0003b6ac0, {0xc0007892b0?, 0xc0006b2040?})
	pkg/tcpip/link/tun/device.go:345 +0x4d
gvisor.dev/gvisor/pkg/tcpip/link/tun.(*Device).Release(0xc000354368, {0x79d238, 0xc000739500})
	pkg/tcpip/link/tun/device.go:82 +0x1c6
gvisor.dev/gvisor/pkg/sentry/devices/tundev.(*tunFD).Release(0xc000354300, {0x79d238, 0xc000739500})
	pkg/sentry/devices/tundev/tundev.go:117 +0x47
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef.func1()
	pkg/sentry/vfs/file_description.go:192 +0x348
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescriptionRefs).DecRef(0xc000354300, 0xc00080fb68)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/vfs/file_description_refs.go:131 +0x5f
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef(0xc000354300, {0x79d238, 0xc000739500})
	pkg/sentry/vfs/file_description.go:161 +0x6f
gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).drop(0xc000192b10?, {0x79d238, 0xc000739500}, 0xc000354300)
	pkg/sentry/kernel/fd_table.go:137 +0x1ed
gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).RemoveIf(0xc000192b00, {0x79d238, 0xc000739500}, 0x4d4a08)
	pkg/sentry/kernel/fd_table.go:501 +0x150
gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).DecRef.func1()
	pkg/sentry/kernel/fd_table.go:152 +0x54
gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTableRefs).DecRef(0xc000192b00, 0xc00080fd88)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/kernel/fd_table_refs.go:131 +0x5f
gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).DecRef(0xc000192b00, {0x79d238, 0xc000739500})
	pkg/sentry/kernel/fd_table.go:151 +0x6f
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc000739500, 0xc000739500)
	pkg/sentry/kernel/task_exit.go:281 +0x797
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000739500, 0xe)
	pkg/sentry/kernel/task_run.go:94 +0x3a2
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad