The patch titled
rmap: fix anon_vma_fork() memory leak
has been added to the -mm tree. Its filename is
rmap-fix-anon_vma_fork-memory-leak.patch
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------------------------------------------------------
Subject: rmap: fix anon_vma_fork() memory leak
From: Rik van Riel <riel@xxxxxxxxxx>
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
fails.
This bug also has the potential to leave behind anon_vma_chain structs
with pointers to invalid memory.
Signed-off-by: Rik van Riel <riel@xxxxxxxxxx>
Reported-by: Minchan Kim <minchan.kim@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/rmap.c | 1 +
1 file changed, 1 insertion(+)
diff -puN mm/rmap.c~rmap-fix-anon_vma_fork-memory-leak mm/rmap.c
--- a/mm/rmap.c~rmap-fix-anon_vma_fork-memory-leak
+++ a/mm/rmap.c
@@ -232,6 +232,7 @@ int anon_vma_fork(struct vm_area_struct
out_error_free_anon_vma:
anon_vma_free(anon_vma);
out_error:
+ unlink_anon_vmas(vma);
return -ENOMEM;
}
_
Patches currently in -mm which might be from riel@xxxxxxxxxx are
rmap-fix-anon_vma_fork-memory-leak.patch
exit-fix-oops-in-sync_mm_rss.patch
exit-fix-oops-in-sync_mm_rss-fix.patch
mm-revert-vmscan-get_scan_ratio-cleanup.patch
page-allocator-reduce-fragmentation-in-buddy-allocator-by-adding-buddies-that-are-merging-to-the-tail-of-the-free-lists.patch
mm-remove-return-value-of-putback_lru_pages.patch
oom-filter-tasks-not-sharing-the-same-cpuset.patch
oom-sacrifice-child-with-highest-badness-score-for-parent.patch
oom-select-task-from-tasklist-for-mempolicy-ooms.patch
oom-remove-special-handling-for-pagefault-ooms.patch
oom-badness-heuristic-rewrite.patch
oom-deprecate-oom_adj-tunable.patch
oom-replace-sysctls-with-quick-mode.patch
oom-avoid-oom-killer-for-lowmem-allocations.patch
oom-remove-unnecessary-code-and-cleanup.patch
oom-default-to-killing-current-for-pagefault-ooms.patch
oom-avoid-race-for-oom-killed-tasks-detaching-mm-prior-to-exit.patch
oom-hold-tasklist_lock-when-dumping-tasks.patch
oom-give-current-access-to-memory-reserves-if-it-has-been-killed.patch
oom-avoid-sending-exiting-tasks-a-sigkill.patch
oom-clean-up-oom_kill_task.patch
oom-clean-up-oom_badness.patch
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