panic: Decrementing non-positive ref count 0xc00080a8f0, owned by vfs.Filesystem

goroutine 115915 [running]:
panic({0x10f8140?, 0xc000f550e0?})
	GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc002e8ba98 sp=0xc002e8b9e8 pc=0x43a72c
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc00080a8f0, 0xc002e90160?)
	bazel-out/k8-fastbuild/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x154 fp=0xc002e8bb00 sp=0xc002e8ba98 pc=0x794714
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0xc002e8bb80?, {0x1587498?, 0xc001fb8000?})
	pkg/sentry/vfs/filesystem.go:77 +0x55 fp=0xc002e8bb40 sp=0xc002e8bb00 pc=0x793cf5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc0002196d8, {0x1587498, 0xc001fb8000})
	pkg/sentry/vfs/vfs.go:1030 +0x1df fp=0xc002e8bbf0 sp=0xc002e8bb40 pc=0x7b317f
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1()
	pkg/sentry/vfs/mount.go:826 +0x28 fp=0xc002e8bc18 sp=0xc002e8bbf0 pc=0x79db88
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc002f4a9a0, {0x1587498, 0xc001fb8000})
	pkg/sentry/vfs/mount.go:839 +0x282 fp=0xc002e8bcb8 sp=0xc002e8bc18 pc=0x79dae2
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc002f4a9a0, {0x1587498, 0xc001fb8000})
	pkg/sentry/vfs/mount.go:820 +0xa5 fp=0xc002e8bce0 sp=0xc002e8bcb8 pc=0x79d825
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc0002196d8, {0x1587498, 0xc001fb8000})
	pkg/sentry/vfs/vfs.go:1030 +0x1df fp=0xc002e8bd90 sp=0xc002e8bce0 pc=0x7b317f
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0xc003e2d890, {0x1587498, 0xc001fb8000})
	pkg/sentry/vfs/namespace.go:201 +0x99 fp=0xc002e8bdc8 sp=0xc002e8bd90 pc=0x7a5039
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1()
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x38 fp=0xc002e8bdf0 sp=0xc002e8bdc8 pc=0x84b958
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0x0?, 0xc002345e68)
	bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0x75 fp=0xc002e8be58 sp=0xc002e8bdf0 pc=0x84b475
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0xc001fb8000?, {0x1587498?, 0xc001fb8000?})
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x5c fp=0xc002e8be98 sp=0xc002e8be58 pc=0x84b8dc
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(...)
	pkg/sentry/vfs/namespace.go:216
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc004674c00, 0xc001fb8000)
	pkg/sentry/kernel/task_exit.go:297 +0x56b fp=0xc002e8bf48 sp=0xc002e8be98 pc=0xa0a98b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001fb8000, 0x12b9)
	pkg/sentry/kernel/task_run.go:98 +0x262 fp=0xc002e8bfc0 sp=0xc002e8bf48 pc=0xa17302
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:391 +0x25 fp=0xc002e8bfe0 sp=0xc002e8bfc0 pc=0xa24325
runtime.goexit()
	src/runtime/asm_amd64.s:1650 +0x1 fp=0xc002e8bfe8 sp=0xc002e8bfe0 pc=0x471241
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 115796
	pkg/sentry/kernel/task_start.go:391 +0xf8