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 E902469951; Wed, 21 Feb 2024 13:33:53 +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=1708522434; cv=none; b=IPOGAAHThQ8zDKpCGO5TBRGz+/fDiUGVM1/J2RL2yV6TNWj+2qflmeviTRlMWU4ToQ8rsKdG8kTDtb/axoqwNBW+DUi9m2N45i22r4q+zghb30o0tO+EHWWtdOsfBS1DvbrqNa2pmxyNOW0vNpA58/Rtbaa6+gSsJhXpqI3tb3U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708522434; c=relaxed/simple; bh=fBsB3/5mAlhHmxQPO8V/T6EksugQMiOsNmXX51CpGYU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DK/jma/C34oAY2SCcGTLBhVORCoJiJHVf5FQwtb/+yVushMDdH/R+W8zbsqLJWO0t2lIEGYzUmcWdT4c1/e5IaFEf2uUL+Kn0aEo5F2QRFP01oXQIKzO2joo6+z+r+N/aSJAIbRLIqsbBpXSCFjZL5o7VuAHdRwWn2Ps00HpoDM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BbEaAD3t; 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="BbEaAD3t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25648C433C7; Wed, 21 Feb 2024 13:33:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1708522433; bh=fBsB3/5mAlhHmxQPO8V/T6EksugQMiOsNmXX51CpGYU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BbEaAD3tqX8i7bvai150cEmaM5Ni7a4GU+xfj0+DHUnoJ9WvmaKUHwEicK4zx3lX+ jwhySS4+LoNmtJZvCS04oUnfFHhhsIrDpN5xJ6WIEnsCHw/MjNV4GBX+qgkYOYjpUE h3KbC8OvYQTRKtMtQ58Ty/2arA0UqtJcnRWdfhNY= 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 5.15 146/476] jfs: fix slab-out-of-bounds Read in dtSearch Date: Wed, 21 Feb 2024 14:03:17 +0100 Message-ID: <20240221130013.318272191@linuxfoundation.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240221130007.738356493@linuxfoundation.org> References: <20240221130007.738356493@linuxfoundation.org> User-Agent: quilt/0.67 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: 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 fafcb90219cf..a222a9d71887 100644 --- a/fs/jfs/jfs_dtree.c +++ b/fs/jfs/jfs_dtree.c @@ -633,6 +633,11 @@ 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