panic: Decrementing non-positive ref count 0xc0007de9c0, owned by vfs.Filesystem

goroutine 37983 [running]:
panic({0x10f2ce0?, 0xc004d1e110?})
	GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc003deda38 sp=0xc003ded988 pc=0x43a72c
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc0007de9c0, 0xc000282710?)
	bazel-out/k8-fastbuild/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x154 fp=0xc003dedaa0 sp=0xc003deda38 pc=0x791474
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0xc003dedb20?, {0x1580618?, 0xc007345500?})
	pkg/sentry/vfs/filesystem.go:77 +0x55 fp=0xc003dedae0 sp=0xc003dedaa0 pc=0x790a55
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc00021d6d8, {0x1580618, 0xc007345500})
	pkg/sentry/vfs/vfs.go:1030 +0x1df fp=0xc003dedb90 sp=0xc003dedae0 pc=0x7afedf
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1()
	pkg/sentry/vfs/mount.go:826 +0x28 fp=0xc003dedbb8 sp=0xc003dedb90 pc=0x79a8e8
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc001094580, {0x1580618, 0xc007345500})
	pkg/sentry/vfs/mount.go:839 +0x282 fp=0xc003dedc58 sp=0xc003dedbb8 pc=0x79a842
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc001094580, {0x1580618, 0xc007345500})
	pkg/sentry/vfs/mount.go:820 +0xa5 fp=0xc003dedc80 sp=0xc003dedc58 pc=0x79a585
gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc001094580?, 0xc006fadcc0?}, {0x1580618, 0xc007345500})
	pkg/sentry/vfs/vfs.go:1086 +0x67 fp=0xc003dedcb0 sp=0xc003dedc80 pc=0x7b0047
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualDentry).DecRef(0xc003dedd20?, {0x1580618?, 0xc007345500?})
	<autogenerated>:1 +0x3e fp=0xc003dedce0 sp=0xc003dedcb0 pc=0x7bf8be
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc00021d6d8, {0x1580618, 0xc007345500})
	pkg/sentry/vfs/vfs.go:1030 +0x1df fp=0xc003dedd90 sp=0xc003dedce0 pc=0x7afedf
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0xc0073313e0, {0x1580618, 0xc007345500})
	pkg/sentry/vfs/namespace.go:201 +0x99 fp=0xc003deddc8 sp=0xc003dedd90 pc=0x7a1d99
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1()
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x38 fp=0xc003deddf0 sp=0xc003deddc8 pc=0x8486b8
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0x0?, 0xc003dede68)
	bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0x75 fp=0xc003dede58 sp=0xc003deddf0 pc=0x8481d5
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0xc007345500?, {0x1580618?, 0xc007345500?})
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x5c fp=0xc003dede98 sp=0xc003dede58 pc=0x84863c
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(...)
	pkg/sentry/vfs/namespace.go:216
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc007420500, 0xc007345500)
	pkg/sentry/kernel/task_exit.go:297 +0x56b fp=0xc003dedf48 sp=0xc003dede98 pc=0xa074eb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc007345500, 0x99c)
	pkg/sentry/kernel/task_run.go:98 +0x262 fp=0xc003dedfc0 sp=0xc003dedf48 pc=0xa13e62
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:391 +0x25 fp=0xc003dedfe0 sp=0xc003dedfc0 pc=0xa20e85
runtime.goexit()
	src/runtime/asm_amd64.s:1650 +0x1 fp=0xc003dedfe8 sp=0xc003dedfe0 pc=0x471241
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 38003
	pkg/sentry/kernel/task_start.go:391 +0xf8