The patch titled
mm: nommu: fix a potential memory leak in do_mmap_private()
has been added to the -mm tree. Its filename is
mm-nommu-fix-a-potential-memory-leak-in-do_mmap_private.patch
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------------------------------------------------------
Subject: mm: nommu: fix a potential memory leak in do_mmap_private()
From: Namhyung Kim <namhyung@xxxxxxxxx>
If f_op->read() fails and sysctl_nr_trim_pages > 1, there could be a
memory leak between @region->vm_end and @region->vm_top.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx>
Acked-by: Greg Ungerer <gerg@xxxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/nommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/nommu.c~mm-nommu-fix-a-potential-memory-leak-in-do_mmap_private mm/nommu.c
--- a/mm/nommu.c~mm-nommu-fix-a-potential-memory-leak-in-do_mmap_private
+++ a/mm/nommu.c
@@ -1217,7 +1217,7 @@ static int do_mmap_private(struct vm_are
return 0;
error_free:
- free_page_series(region->vm_start, region->vm_end);
+ free_page_series(region->vm_start, region->vm_top);
region->vm_start = vma->vm_start = 0;
region->vm_end = vma->vm_end = 0;
region->vm_top = 0;
_
Patches currently in -mm which might be from namhyung@xxxxxxxxx are
mm-nommu-sort-mm-mmap-list-properly.patch
mm-nommu-sort-mm-mmap-list-properly-fix.patch
mm-nommu-dont-scan-the-vma-list-when-deleting.patch
mm-nommu-find-vma-using-the-sorted-vma-list.patch
mm-nommu-check-the-vma-list-when-unmapping-file-mapped-vma.patch
mm-nommu-fix-a-potential-memory-leak-in-do_mmap_private.patch
mm-nommu-fix-a-compile-warning-in-do_mmap_pgoff.patch
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