Messages in this thread Patch in this message | | | From | Luis Henriques <> | Subject | [PATCH 3.16.y-ckt 075/180] UBI: fix out of bounds write | Date | Thu, 7 May 2015 10:44:44 +0100 |
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3.16.7-ckt11 -stable review patch. If anyone has any objections, please let me know.
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From: Brian Norris <computersforpeace@gmail.com>
commit d74adbdb9abf0d2506a6c4afa534d894f28b763f upstream.
If aeb->len >= vol->reserved_pebs, we should not be writing aeb into the PEB->LEB mapping.
Caught by Coverity, CID #711212.
Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/mtd/ubi/eba.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index 0e11671dadc4..930cf2c77abb 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -1362,7 +1362,8 @@ int ubi_eba_init(struct ubi_device *ubi, struct ubi_attach_info *ai) * during re-size. */ ubi_move_aeb_to_list(av, aeb, &ai->erase); - vol->eba_tbl[aeb->lnum] = aeb->pnum; + else + vol->eba_tbl[aeb->lnum] = aeb->pnum; } }
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