From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Frieder Schrempf , Miquel Raynal , Boris Brezillon Subject: [PATCH 4.19 06/41] mtd: nand: Fix memory allocation in nanddev_bbt_init() Date: Thu, 6 Dec 2018 15:38:46 +0100 Message-Id: <20181206142950.228646871@linuxfoundation.org> In-Reply-To: <20181206142949.757402551@linuxfoundation.org> References: <20181206142949.757402551@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Frieder Schrempf commit 40b412897ccb4b98b2cfb2a0aaabed58dd9e2086 upstream. Fix the size of the buffer allocated to store the in-memory BBT. This bug was previously hidden by a different bug, that was fixed in commit d098093ba06e ("mtd: nand: Fix nanddev_neraseblocks()"). Fixes: 9c3736a3de21 ("mtd: nand: Add core infrastructure to deal with NAND devices") Cc: Signed-off-by: Frieder Schrempf Acked-by: Miquel Raynal Signed-off-by: Boris Brezillon Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/bbt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/mtd/nand/bbt.c +++ b/drivers/mtd/nand/bbt.c @@ -27,7 +27,8 @@ int nanddev_bbt_init(struct nand_device unsigned int nwords = DIV_ROUND_UP(nblocks * bits_per_block, BITS_PER_LONG); - nand->bbt.cache = kzalloc(nwords, GFP_KERNEL); + nand->bbt.cache = kcalloc(nwords, sizeof(*nand->bbt.cache), + GFP_KERNEL); if (!nand->bbt.cache) return -ENOMEM;