panic: Decrementing non-positive ref count 0xc00098f1d0, owned by tun.tunEndpoint goroutine 601 gp=0xc000696380 m=14 mp=0xc0004d7808 [running]: panic({0x1884fa0?, 0xc0017fd5e0?}) GOROOT/src/runtime/panic.go:811 +0x154 fp=0xc0000472f0 sp=0xc000047240 pc=0x47bb74 gvisor.dev/gvisor/pkg/tcpip/link/tun.(*tunEndpointRefs).DecRef(0xc00098f1d0, 0xc000047388) bazel-out/aarch64-fastbuild/bin/pkg/tcpip/link/tun/tun_endpoint_refs.go:127 +0x150 fp=0xc000047370 sp=0xc0000472f0 pc=0xfc8cf0 gvisor.dev/gvisor/pkg/tcpip/link/tun.(*tunEndpoint).DecRef(0xc00098f1d0, {0xc0017fcdc0?, 0xc0000473f8?}) pkg/tcpip/link/tun/device.go:415 +0x68 fp=0xc0000473a0 sp=0xc000047370 pc=0xfc76f8 gvisor.dev/gvisor/pkg/tcpip/link/tun.(*Device).Release(0xc000659da8, {0x1d61bb8, 0xc000d76588}) pkg/tcpip/link/tun/device.go:98 +0x150 fp=0xc000047430 sp=0xc0000473a0 pc=0xfc5070 gvisor.dev/gvisor/pkg/sentry/devices/tundev.(*tunFD).Release(0xc000659d40, {0x1d61bb8, 0xc000d76588}) pkg/sentry/devices/tundev/tundev.go:127 +0x54 fp=0xc000047460 sp=0xc000047430 pc=0x1463da4 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef.func1() pkg/sentry/vfs/file_description.go:205 +0x46c fp=0xc0000475a0 sp=0xc000047460 pc=0xa1371c gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescriptionRefs).DecRef(0xc000659d40, 0xc000047638) bazel-out/aarch64-fastbuild/bin/pkg/sentry/vfs/file_description_refs.go:133 +0xa0 fp=0xc000047620 sp=0xc0000475a0 pc=0xa1cb30 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef(0xc000659d40, {0x1d61bb8, 0xc000d76588}) pkg/sentry/vfs/file_description.go:161 +0x90 fp=0xc000047660 sp=0xc000047620 pc=0xa13280 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.CloseRange(0xc000d76588, 0x62?, {{0x3}, {0x1e}, {0x0}, {0x44}, {0xe9eccb6df148}, {0x1}}) pkg/sentry/syscalls/linux/sys_file.go:504 +0x364 fp=0xc0000476f0 sp=0xc000047660 pc=0x10459c4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000d76588, 0x1b4, {{0x3}, {0x1e}, {0x0}, {0x44}, {0xe9eccb6df148}, {0x1}}) pkg/sentry/kernel/task_syscall.go:143 +0x880 fp=0xc0000479a0 sp=0xc0000476f0 pc=0xe212a0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000d76588, 0x1b4, {{0x3}, {0x1e}, {0x0}, {0x44}, {0xe9eccb6df148}, {0x1}}) pkg/sentry/kernel/task_syscall.go:323 +0x60 fp=0xc000047a50 sp=0xc0000479a0 pc=0xe22c80 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000d76588, 0x1b4, {{0x3}, {0x1e}, {0x0}, {0x44}, {0xe9eccb6df148}, {0x1}}) pkg/sentry/kernel/task_syscall.go:283 +0xa8 fp=0xc000047ac0 sp=0xc000047a50 pc=0xe22708 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000d76588) pkg/sentry/kernel/task_syscall.go:258 +0x45c fp=0xc000047bf0 sp=0xc000047ac0 pc=0xe2233c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000d76588?, 0xc000d76588) pkg/sentry/kernel/task_run.go:269 +0x1814 fp=0xc000047e60 sp=0xc000047bf0 pc=0xe11774 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000d76588, 0x4c) pkg/sentry/kernel/task_run.go:97 +0x2f8 fp=0xc000047fa0 sp=0xc000047e60 pc=0xe0f6b8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:416 +0x44 fp=0xc000047fd0 sp=0xc000047fa0 pc=0xe1f2a4 runtime.goexit({}) src/runtime/asm_arm64.s:1223 +0x4 fp=0xc000047fd0 sp=0xc000047fd0 pc=0x484eb4 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 528 pkg/sentry/kernel/task_start.go:416 +0x160