This is a note to let you know that I've just added the patch titled
fs/binfmt_elf.c: fix hugetlb memory check in vma_dump_size()
to the 3.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fs-binfmt_elf.c-fix-hugetlb-memory-check-in-vma_dump_size.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 23d9e482136e31c9d287633a6e473daa172767c4 Mon Sep 17 00:00:00 2001
From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Date: Wed, 17 Apr 2013 15:58:28 -0700
Subject: fs/binfmt_elf.c: fix hugetlb memory check in vma_dump_size()
From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
commit 23d9e482136e31c9d287633a6e473daa172767c4 upstream.
Documentation/filesystems/proc.txt says about coredump_filter bitmask,
Note bit 0-4 doesn't effect any hugetlb memory. hugetlb memory are only
effected by bit 5-6.
However current code can go into the subsequent flag checks of bit 0-4
for vma(VM_HUGETLB). So this patch inserts 'return' and makes it work
as written in the document.
Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxx>
Reviewed-by: HATAYAMA Daisuke <d.hatayama@xxxxxxxxxxxxxx>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
---
fs/binfmt_elf.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1132,6 +1132,7 @@ static unsigned long vma_dump_size(struc
goto whole;
if (!(vma->vm_flags & VM_SHARED) && FILTER(HUGETLB_PRIVATE))
goto whole;
+ return 0;
}
/* Do not dump I/O mapped devices or special mappings */
Patches currently in stable-queue which might be from n-horiguchi@xxxxxxxxxxxxx are
queue-3.8/fs-binfmt_elf.c-fix-hugetlb-memory-check-in-vma_dump_size.patch
queue-3.8/hugetlbfs-add-swap-entry-check-in-follow_hugetlb_page.patch
queue-3.8/hugetlbfs-stop-setting-vm_dontdump-in-initializing-vma-vm_hugetlb.patch
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