[PATCH] rmap: fix anon_vma_fork() memory leak

From: Rik van Riel
Date: Sun Apr 04 2010 - 19:11:15 EST

Fix a memory leak in anon_vma_fork(), where we fail to tear down the
anon_vmas attached to the new VMA in case setting up the new anon_vma

Reported-by: Minchan Kim <minchan.kim@xxxxxxxxx>
Signed-off-by: Rik van Riel <riel@xxxxxxxxxx>

diff --git a/mm/rmap.c b/mm/rmap.c
index fcd593c..fb7ce99 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -231,6 +231,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)

+ unlink_anon_vmas(vma);
return -ENOMEM;

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