From b042a85d1a39e0a26be485485a27ea12d7508bd3 Mon Sep 17 00:00:00 2001 From: Ayush Ranjan Date: Wed, 19 Jun 2024 10:23:15 -0700 Subject: [PATCH] Destroy Kernel.mf on kernel release. Otherwise after restore when the old kernel is replaced, we were leaking its MemoryFile resources when the old kernel was released. PiperOrigin-RevId: 644777850 --- pkg/sentry/kernel/kernel.go | 1 + 1 file changed, 1 insertion(+) diff --git a/pkg/sentry/kernel/kernel.go b/pkg/sentry/kernel/kernel.go index 06d18c158..230ed9742 100644 --- a/pkg/sentry/kernel/kernel.go +++ b/pkg/sentry/kernel/kernel.go @@ -1918,6 +1918,7 @@ func (k *Kernel) Release() { k.rootIPCNamespace.DecRef(ctx) k.rootUTSNamespace.DecRef(ctx) k.cleaupDevGofers() + k.mf.Destroy() } // PopulateNewCgroupHierarchy moves all tasks into a newly created cgroup