From fc7df53222e56fdce7dee002f1fb4c332de616af Mon Sep 17 00:00:00 2001
From: Dean Deng <deandeng@google.com>
Date: Tue, 13 Oct 2020 00:12:28 -0700
Subject: Don't leak VDSO mappings.

PiperOrigin-RevId: 336822021
---
 pkg/sentry/loader/vdso.go | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'pkg/sentry/loader')

diff --git a/pkg/sentry/loader/vdso.go b/pkg/sentry/loader/vdso.go
index 05a294fe6..241d87835 100644
--- a/pkg/sentry/loader/vdso.go
+++ b/pkg/sentry/loader/vdso.go
@@ -380,3 +380,9 @@ func loadVDSO(ctx context.Context, m *mm.MemoryManager, v *VDSO, bin loadedELF)
 
 	return vdsoAddr, nil
 }
+
+// Release drops references on mappings held by v.
+func (v *VDSO) Release(ctx context.Context) {
+	v.ParamPage.DecRef(ctx)
+	v.vdso.DecRef(ctx)
+}
-- 
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