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fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list()

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commit ea303f72d7 upstream.

syzbot is reporting too large allocation at ntfs_load_attr_list(), for
a crafted filesystem can have huge data_size.

Reported-by: syzbot <syzbot+89dbb3a789a5b9711793@syzkaller.appspotmail.com>
Link: https://syzkaller.appspot.com/bug?extid=89dbb3a789a5b9711793
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tetsuo Handa 2023-03-28 20:05:16 +09:00 • committed by Justin Hammond
parent ab400bb306
commit 247409df51
1 changed files with 2 additions and 2 deletions
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4
fs/ntfs3/attrlist.c
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@ -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;