panic: Decrementing non-positive ref count 0xc00092ea90, owned by vfs.Filesystem

goroutine 258572 [running]:
panic({0x10f8140?, 0xc00862c2e0?})
	GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc001229a98 sp=0xc0012299e8 pc=0x43a72c
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc00092ea90, 0xc00b608a50?)
	bazel-out/k8-fastbuild/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x154 fp=0xc001229b00 sp=0xc001229a98 pc=0x794714
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0xc001229b80?, {0x1587498?, 0xc002bb2a80?})
	pkg/sentry/vfs/filesystem.go:77 +0x55 fp=0xc001229b40 sp=0xc001229b00 pc=0x793cf5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc000428fd8, {0x1587498, 0xc002bb2a80})
	pkg/sentry/vfs/vfs.go:1030 +0x1df fp=0xc001229bf0 sp=0xc001229b40 pc=0x7b317f
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1()
	pkg/sentry/vfs/mount.go:826 +0x28 fp=0xc001229c18 sp=0xc001229bf0 pc=0x79db88
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc00483e4d0, {0x1587498, 0xc002bb2a80})
	pkg/sentry/vfs/mount.go:839 +0x282 fp=0xc001229cb8 sp=0xc001229c18 pc=0x79dae2
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc00483e4d0, {0x1587498, 0xc002bb2a80})
	pkg/sentry/vfs/mount.go:820 +0xa5 fp=0xc001229ce0 sp=0xc001229cb8 pc=0x79d825
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc000428fd8, {0x1587498, 0xc002bb2a80})
	pkg/sentry/vfs/vfs.go:1030 +0x1df fp=0xc001229d90 sp=0xc001229ce0 pc=0x7b317f
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0xc000512cf0, {0x1587498, 0xc002bb2a80})
	pkg/sentry/vfs/namespace.go:201 +0x99 fp=0xc001229dc8 sp=0xc001229d90 pc=0x7a5039
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1()
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x38 fp=0xc001229df0 sp=0xc001229dc8 pc=0x84b958
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0x0?, 0xc001229e68)
	bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0x75 fp=0xc001229e58 sp=0xc001229df0 pc=0x84b475
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0xc002bb2a80?, {0x1587498?, 0xc002bb2a80?})
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x5c fp=0xc001229e98 sp=0xc001229e58 pc=0x84b8dc
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(...)
	pkg/sentry/vfs/namespace.go:216
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc002bb2a80, 0xc002bb2a80)
	pkg/sentry/kernel/task_exit.go:297 +0x56b fp=0xc001229f48 sp=0xc001229e98 pc=0xa0a98b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc002bb2a80, 0x19aa)
	pkg/sentry/kernel/task_run.go:98 +0x262 fp=0xc001229fc0 sp=0xc001229f48 pc=0xa17302
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:391 +0x25 fp=0xc001229fe0 sp=0xc001229fc0 pc=0xa24325
runtime.goexit()
	src/runtime/asm_amd64.s:1650 +0x1 fp=0xc001229fe8 sp=0xc001229fe0 pc=0x471241
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 258579
	pkg/sentry/kernel/task_start.go:391 +0xf8