From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
syzot <syzbot+33f3faaa0c08744f7d40@syzkaller.appspotmail.com>,
Konstantin Komarov <almaz.alexandrovich@paragon-software.com>,
Sasha Levin <sashal@kernel.org>,
ntfs3@lists.linux.dev
Subject: [PATCH AUTOSEL 5.15 14/22] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_fill_super()
Date: Tue, 27 Dec 2022 15:34:24 -0500 [thread overview]
Message-ID: <20221227203433.1214255-14-sashal@kernel.org> (raw)
In-Reply-To: <20221227203433.1214255-1-sashal@kernel.org>
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
[ Upstream commit 59bfd7a483da36bd202532a3d9ea1f14f3bf3aaf ]
syzbot is reporting too large allocation at ntfs_fill_super() [1], for a
crafted filesystem can contain bogus inode->i_size. Add __GFP_NOWARN in
order to avoid too large allocation warning, than exhausting memory by
using kvmalloc().
Link: https://syzkaller.appspot.com/bug?extid=33f3faaa0c08744f7d40 [1]
Reported-by: syzot <syzbot+33f3faaa0c08744f7d40@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ntfs3/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index 25a9b3691033..0d1093e9682f 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -1136,7 +1136,7 @@ static int ntfs_fill_super(struct super_block *sb, struct fs_context *fc)
goto put_inode_out;
}
bytes = inode->i_size;
- sbi->def_table = t = kmalloc(bytes, GFP_NOFS);
+ sbi->def_table = t = kmalloc(bytes, GFP_NOFS | __GFP_NOWARN);
if (!t) {
err = -ENOMEM;
goto put_inode_out;
--
2.35.1
next prev parent reply other threads:[~2022-12-27 20:41 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-27 20:34 [PATCH AUTOSEL 5.15 01/22] fs/ntfs3: Validate BOOT record_size Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 02/22] fs/ntfs3: Add overflow check for attribute size Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 03/22] fs/ntfs3: Validate data run offset Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 04/22] fs/ntfs3: Add null pointer check to attr_load_runs_vcn Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 05/22] fs/ntfs3: Fix memory leak on ntfs_fill_super() error path Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 06/22] fs/ntfs3: Add null pointer check for inode operations Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 07/22] fs/ntfs3: Validate attribute name offset Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 08/22] fs/ntfs3: Validate buffer length while parsing index Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 09/22] fs/ntfs3: Validate resident attribute name Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 10/22] fs/ntfs3: Fix slab-out-of-bounds read in run_unpack Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 11/22] soundwire: dmi-quirks: add quirk variant for LAPBC710 NUC15 Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 12/22] fs/ntfs3: Validate index root when initialize NTFS security Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 13/22] fs/ntfs3: Use __GFP_NOWARN allocation at wnd_init() Sasha Levin
2022-12-27 20:34 ` Sasha Levin [this message]
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 15/22] fs/ntfs3: Delete duplicate condition in ntfs_read_mft() Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 16/22] fs/ntfs3: Fix slab-out-of-bounds in r_page Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 17/22] objtool: Fix SEGFAULT Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 18/22] powerpc/rtas: avoid device tree lookups in rtas_os_term() Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 19/22] powerpc/rtas: avoid scheduling " Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 20/22] powerpc/msi: Fix deassociation of MSI descriptors Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 21/22] HID: multitouch: fix Asus ExpertBook P2 P2451FA trackpoint Sasha Levin
2022-12-27 20:34 ` [PATCH AUTOSEL 5.15 22/22] HID: plantronics: Additional PIDs for double volume key presses quirk Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20221227203433.1214255-14-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=almaz.alexandrovich@paragon-software.com \
--cc=linux-kernel@vger.kernel.org \
--cc=ntfs3@lists.linux.dev \
--cc=penguin-kernel@I-love.SAKURA.ne.jp \
--cc=stable@vger.kernel.org \
--cc=syzbot+33f3faaa0c08744f7d40@syzkaller.appspotmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox