From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C6B5C001B0 for ; Mon, 24 Jul 2023 01:45:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232554AbjGXBpn (ORCPT ); Sun, 23 Jul 2023 21:45:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232654AbjGXBnh (ORCPT ); Sun, 23 Jul 2023 21:43:37 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86CFB3A90; Sun, 23 Jul 2023 18:38:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E739460F13; Mon, 24 Jul 2023 01:33:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BB01FC433C7; Mon, 24 Jul 2023 01:33:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1690162434; bh=fJ/v6nE3FjuX7BpEnE171zKvWt1oZT2470FJTuWFSzM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BKRGMCJm4MIXNqa2Jf+Er1J4TD50MNgtX0e6v6RiTn+ls28BIHcnB8cA0HEgQC0lI 7I3ddek5UtlpukFFQl7REataZOfNbF2ugVyX8xKBB+UoNA3NzwyfZTyKlvKeXz/qbN dFKyZnC0HUAXrRqiN+z9EI5xYwBwC5MpkoxSZaR//EVW4viYQl3C2dTTw8X4zoIuLP o3u6xUIrJO/WECmoS0r4NWHWMLUMUp0DAvJhCeB6sJB+1UOsAuf09dGViJ6tXktdEu OvFZQFgRyeWyHI+l3sE6mRa6tUPsL0KyCX3w48/sJ/Onk3oJ3J1HWRdh9ngIwuY8mg xJOMRWU31L1Hg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Tetsuo Handa , syzbot , Konstantin Komarov , Sasha Levin Subject: [PATCH AUTOSEL 5.15 20/24] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list() Date: Sun, 23 Jul 2023 21:33:21 -0400 Message-Id: <20230724013325.2332084-20-sashal@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230724013325.2332084-1-sashal@kernel.org> References: <20230724013325.2332084-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.121 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tetsuo Handa [ Upstream commit ea303f72d70ce2f0b0aa94ab127085289768c5a6 ] syzbot is reporting too large allocation at ntfs_load_attr_list(), for a crafted filesystem can have huge data_size. Reported-by: syzbot Link: https://syzkaller.appspot.com/bug?extid=89dbb3a789a5b9711793 Signed-off-by: Tetsuo Handa Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin --- fs/ntfs3/attrlist.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ntfs3/attrlist.c b/fs/ntfs3/attrlist.c index c0c6bcbc8c05c..81c22df27c725 100644 --- a/fs/ntfs3/attrlist.c +++ b/fs/ntfs3/attrlist.c @@ -52,7 +52,7 @@ int ntfs_load_attr_list(struct ntfs_inode *ni, struct ATTRIB *attr) if (!attr->non_res) { lsize = le32_to_cpu(attr->res.data_size); - le = kmalloc(al_aligned(lsize), GFP_NOFS); + le = kmalloc(al_aligned(lsize), GFP_NOFS | __GFP_NOWARN); if (!le) { err = -ENOMEM; goto out; @@ -80,7 +80,7 @@ int ntfs_load_attr_list(struct ntfs_inode *ni, struct ATTRIB *attr) if (err < 0) goto out; - le = kmalloc(al_aligned(lsize), GFP_NOFS); + le = kmalloc(al_aligned(lsize), GFP_NOFS | __GFP_NOWARN); if (!le) { err = -ENOMEM; goto out; -- 2.39.2