panic: kernfs.Dentry.DecRef() called without holding a reference

goroutine 1892195 [running]:
panic(0x11d1600, 0x15654e8)
	GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc031051ce0 sp=0xc031051c18 pc=0x437c65
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).DecRef(0xc031ff4ab0, 0x15aa460, 0xc01cdb6a80)
	pkg/sentry/fsimpl/kernfs/kernfs.go:312 +0x11f fp=0xc031051d08 sp=0xc031051ce0 pc=0x8a979f
gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(...)
	pkg/sentry/vfs/dentry.go:163
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc009b4fce0, 0x15aa460, 0xc01cdb6a80)
	pkg/sentry/vfs/mount.go:634 +0x125 fp=0xc031051d58 sp=0xc031051d08 pc=0x785925
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc009b4fce0, 0x15aa460, 0xc01cdb6a80)
	pkg/sentry/vfs/mount.go:616 +0xaa fp=0xc031051d80 sp=0xc031051d58 pc=0x7857ea
gvisor.dev/gvisor/pkg/sentry/fsimpl/mqfs.(*RegistryImpl).Destroy(0xc09a9a9110, 0x15aa460, 0xc01cdb6a80)
	pkg/sentry/fsimpl/mqfs/registry.go:155 +0x72 fp=0xc031051da8 sp=0xc031051d80 pc=0x8c8532
gvisor.dev/gvisor/pkg/sentry/kernel/mq.(*Registry).Destroy(0xc007d25580, 0x15aa460, 0xc01cdb6a80)
	pkg/sentry/kernel/mq/mq.go:283 +0x97 fp=0xc031051df0 sp=0xc031051da8 pc=0x8c2d17
gvisor.dev/gvisor/pkg/sentry/kernel.(*IPCNamespace).DecRef.func1()
	pkg/sentry/kernel/ipc_namespace.go:120 +0x9e fp=0xc031051e30 sp=0xc031051df0 pc=0xa862be
gvisor.dev/gvisor/pkg/sentry/kernel.(*IPCNamespaceRefs).DecRef(0xc006631080, 0xc031051eb8)
	bazel-out/k8-fastbuild-ST-4c64f0b3d5c7/bin/pkg/sentry/kernel/ipc_namespace_refs.go:152 +0x82 fp=0xc031051ea8 sp=0xc031051e30 pc=0xa21ce2
gvisor.dev/gvisor/pkg/sentry/kernel.(*IPCNamespace).DecRef(0xc006631080, 0x15aa460, 0xc01cdb6a80)
	pkg/sentry/kernel/ipc_namespace.go:115 +0x73 fp=0xc031051ee8 sp=0xc031051ea8 pc=0xa21533
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0x0, 0xc01cdb6a80, 0x157e4e0, 0x0)
	pkg/sentry/kernel/task_exit.go:292 +0x277 fp=0xc031051f60 sp=0xc031051ee8 pc=0xa4d837
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc01cdb6a80, 0xb665)
	pkg/sentry/kernel/task_run.go:100 +0x1e2 fp=0xc031051fd0 sp=0xc031051f60 pc=0xa58602
runtime.goexit()
	src/runtime/asm_amd64.s:1371 +0x1 fp=0xc031051fd8 sp=0xc031051fd0 pc=0x472861
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:380 +0x116