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 B813169D09; Wed, 21 Feb 2024 13:14:05 +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=1708521245; cv=none; b=lssUawNkHu4LRQ9AnZs2ph/7Xn9z3Jg4MaNgkSviWitqDRDOt2jfnut6kaWY3Ri5GTjEjG1MQ5tN0b4oCjWtc2PYZlwWRLxj/TBfPW3s67/llmNLodOTN+SJ+uxQoe+fOdmiGgHV8O5tX+Vi7OIMkj1psTpRqyNUCmEMaliKoik= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708521245; c=relaxed/simple; bh=9R8wcQPJwuGnE11ob7SIgYDDAhVZ+tULda1Q6vqc0h4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eVZ0PFMI8uJz/z5lgn+ZzqaX6tUCptMcwIg+84WOQnrJjJSoVL/1g7NW6hopbhxZrZY9FRyxz3QopNOldPbOlcQ1o7re2iIT5l9Q+7osxLQtKVXdwhFuKeLcmiO4AsMHqVgVtazuRLiYSP1s7CDO9ZWEzS5MiDHmjoBUFipcrMo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=r685LTmR; 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="r685LTmR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BFD5EC433F1; Wed, 21 Feb 2024 13:14:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1708521245; bh=9R8wcQPJwuGnE11ob7SIgYDDAhVZ+tULda1Q6vqc0h4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r685LTmRpXWUzzPTHPtICcQZxEOeHnVBR/Vw6Z4JCL6Wsw/gFtW8JT+QySUc5RJ1L pbDdt432PDED6/yjn22sbHbgVunsIA1TMn/fzJjxKcc6tkgJOE7IAniqU6nyyzN/Pb b55jQ84huCTUAHDl0oRF4ZkcdnVQpnr1FPGSxxDY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, kernel test robot , Dan Carpenter , Manas Ghandat , Dave Kleikamp , Sasha Levin Subject: [PATCH 4.19 060/202] jfs: fix slab-out-of-bounds Read in dtSearch Date: Wed, 21 Feb 2024 14:06:01 +0100 Message-ID: <20240221125933.784762726@linuxfoundation.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240221125931.742034354@linuxfoundation.org> References: <20240221125931.742034354@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Manas Ghandat [ Upstream commit fa5492ee89463a7590a1449358002ff7ef63529f ] Currently while searching for current page in the sorted entry table of the page there is a out of bound access. Added a bound check to fix the error. Dave: Set return code to -EIO Reported-by: kernel test robot Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/202310241724.Ed02yUz9-lkp@intel.com/ Signed-off-by: Manas Ghandat Signed-off-by: Dave Kleikamp Signed-off-by: Sasha Levin --- fs/jfs/jfs_dtree.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c index 320c9f42b65b..ea2c8f0fe832 100644 --- a/fs/jfs/jfs_dtree.c +++ b/fs/jfs/jfs_dtree.c @@ -646,6 +646,11 @@ int dtSearch(struct inode *ip, struct component_name * key, ino_t * data, for (base = 0, lim = p->header.nextindex; lim; lim >>= 1) { index = base + (lim >> 1); + if (stbl[index] < 0) { + rc = -EIO; + goto out; + } + if (p->header.flag & BT_LEAF) { /* uppercase leaf name to compare */ cmp = -- 2.43.0