| From | Ben Hutchings <> | Date | Sun, 02 Aug 2015 01:02:37 +0100 | Subject | [PATCH 3.2 014/164] UBI: fix out of bounds write |
| |
3.2.70-rc1 review patch. If anyone has any objections, please let me know.
------------------
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> [bwh: Backported to 3.2: adjust context; s/leb/seb/g] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/mtd/ubi/eba.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -1261,7 +1261,8 @@ int ubi_eba_init_scan(struct ubi_device * during re-size. */ ubi_scan_move_to_list(sv, seb, &si->erase); - vol->eba_tbl[seb->lnum] = seb->pnum; + else + vol->eba_tbl[seb->lnum] = seb->pnum; } }
|