panic: Decrementing non-positive ref count 0xc000467110, owned by vfs.Filesystem

goroutine 38543 [running]:
panic({0x10f8140?, 0xc004ff4ab0?})
	GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc0009e3a38 sp=0xc0009e3988 pc=0x43a72c
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc000467110, 0xc0044dd8f0?)
	bazel-out/k8-fastbuild/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x154 fp=0xc0009e3aa0 sp=0xc0009e3a38 pc=0x794714
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0xc0009e3b20?, {0x1587498?, 0xc003969500?})
	pkg/sentry/vfs/filesystem.go:77 +0x55 fp=0xc0009e3ae0 sp=0xc0009e3aa0 pc=0x793cf5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc000560fd8, {0x1587498, 0xc003969500})
	pkg/sentry/vfs/vfs.go:1030 +0x1df fp=0xc0009e3b90 sp=0xc0009e3ae0 pc=0x7b317f
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1()
	pkg/sentry/vfs/mount.go:826 +0x28 fp=0xc0009e3bb8 sp=0xc0009e3b90 pc=0x79db88
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc003304370, {0x1587498, 0xc003969500})
	pkg/sentry/vfs/mount.go:839 +0x282 fp=0xc0009e3c58 sp=0xc0009e3bb8 pc=0x79dae2
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc003304370, {0x1587498, 0xc003969500})
	pkg/sentry/vfs/mount.go:820 +0xa5 fp=0xc0009e3c80 sp=0xc0009e3c58 pc=0x79d825
gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc003304370?, 0xc002887400?}, {0x1587498, 0xc003969500})
	pkg/sentry/vfs/vfs.go:1086 +0x67 fp=0xc0009e3cb0 sp=0xc0009e3c80 pc=0x7b32e7
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualDentry).DecRef(0xc0009e3d20?, {0x1587498?, 0xc003969500?})
	<autogenerated>:1 +0x3e fp=0xc0009e3ce0 sp=0xc0009e3cb0 pc=0x7c2b5e
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc000560fd8, {0x1587498, 0xc003969500})
	pkg/sentry/vfs/vfs.go:1030 +0x1df fp=0xc0009e3d90 sp=0xc0009e3ce0 pc=0x7b317f
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0xc005b545a0, {0x1587498, 0xc003969500})
	pkg/sentry/vfs/namespace.go:201 +0x99 fp=0xc0009e3dc8 sp=0xc0009e3d90 pc=0x7a5039
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1()
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x38 fp=0xc0009e3df0 sp=0xc0009e3dc8 pc=0x84b958
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0x0?, 0xc0009e3e68)
	bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0x75 fp=0xc0009e3e58 sp=0xc0009e3df0 pc=0x84b475
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0xc003969500?, {0x1587498?, 0xc003969500?})
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x5c fp=0xc0009e3e98 sp=0xc0009e3e58 pc=0x84b8dc
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(...)
	pkg/sentry/vfs/namespace.go:216
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc00373ba00, 0xc003969500)
	pkg/sentry/kernel/task_exit.go:297 +0x56b fp=0xc0009e3f48 sp=0xc0009e3e98 pc=0xa0a98b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc003969500, 0x6a3)
	pkg/sentry/kernel/task_run.go:98 +0x262 fp=0xc0009e3fc0 sp=0xc0009e3f48 pc=0xa17302
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:391 +0x25 fp=0xc0009e3fe0 sp=0xc0009e3fc0 pc=0xa24325
runtime.goexit()
	src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0009e3fe8 sp=0xc0009e3fe0 pc=0x471241
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 38686
	pkg/sentry/kernel/task_start.go:391 +0xf8