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Date: Tue, 15 Sep 2015 17:02:11 +0800 From: lizf@...nel.org To: stable@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Brian Norris <computersforpeace@...il.com>, Richard Weinberger <richard@....at>, Zefan Li <lizefan@...wei.com> Subject: [PATCH 3.4 016/146] UBI: fix out of bounds write From: Brian Norris <computersforpeace@...il.com> 3.4.109-rc1 review patch. If anyone has any objections, please let me know. ------------------ 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@...il.com> Signed-off-by: Richard Weinberger <richard@....at> [lizf: Backported to 3.4: adjust context] Signed-off-by: Zefan Li <lizefan@...wei.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 2455d62..9abc0ea 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -1261,7 +1261,8 @@ int ubi_eba_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si) * 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; } } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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