From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D0014242D73; Tue, 29 Apr 2025 17:46:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745948817; cv=none; b=oGM4oxRQvXZbhF86PJWjv29Xk42+VQoLR/lwnq8y17irWFo7zEr7oVGoo82lbDd7ovrakScqsYWPbnnTg6GNcvG70o6K4GrTbw1g54JL2EQseUngRI2Q8krhFUjoMXHpC0LYNihRYVgUwqFyVEBtj3ij49SNPpdPJWFSx7vWZ6g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745948817; c=relaxed/simple; bh=5H7L7k4gUmo4FBjijGUxldKiCpjhNOVyJB0l6pX7OHg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X62WoLz/BwfBdAGqmxu53Nf9JDnPw9hwIKa0cUO0q8X/pm/uOAsjX4xILa1BY+58D2iTEN8x0A20dz2EJAfW7bPfq1un3KsGOllzbInejcvzFRzPNG0qiHiCR3+YvmvSsSgt3WP+1OC1ozD6icPNYgcLWN1QmXNL0fCRSfRQxw0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=IHO5xu6f; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="IHO5xu6f" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F16EFC4CEE3; Tue, 29 Apr 2025 17:46:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745948817; bh=5H7L7k4gUmo4FBjijGUxldKiCpjhNOVyJB0l6pX7OHg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IHO5xu6fmXaS/GvMNW7fgHa8EJ5Nt3cJO0acuHj9x2D7iq3m/IoAFSg6rjUc6gPz0 hFcOe724s2ohe6Hm9jzNGsQg/Z92P7T4ivEtw1yLuhBItLj7v5m6t6T2XLCA8VRleY EPgqL1MEQv0RVSqThQTxl6pJONozaTM2kgmmYwCY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wentao Liang , Miquel Raynal Subject: [PATCH 5.15 096/373] mtd: inftlcore: Add error check for inftl_read_oob() Date: Tue, 29 Apr 2025 18:39:33 +0200 Message-ID: <20250429161127.102898688@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161123.119104857@linuxfoundation.org> References: <20250429161123.119104857@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Wentao Liang commit d027951dc85cb2e15924c980dc22a6754d100c7c upstream. In INFTL_findwriteunit(), the return value of inftl_read_oob() need to be checked. A proper implementation can be found in INFTL_deleteblock(). The status will be set as SECTOR_IGNORE to break from the while-loop correctly if the inftl_read_oob() fails. Fixes: 8593fbc68b0d ("[MTD] Rework the out of band handling completely") Cc: stable@vger.kernel.org # v2.6+ Signed-off-by: Wentao Liang Signed-off-by: Miquel Raynal Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/inftlcore.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -482,10 +482,11 @@ static inline u16 INFTL_findwriteunit(st silly = MAX_LOOPS; while (thisEUN <= inftl->lastEUN) { - inftl_read_oob(mtd, (thisEUN * inftl->EraseSize) + - blockofs, 8, &retlen, (char *)&bci); - - status = bci.Status | bci.Status1; + if (inftl_read_oob(mtd, (thisEUN * inftl->EraseSize) + + blockofs, 8, &retlen, (char *)&bci) < 0) + status = SECTOR_IGNORE; + else + status = bci.Status | bci.Status1; pr_debug("INFTL: status of block %d in EUN %d is %x\n", block , writeEUN, status);