Unverified Commit 4e8011ff authored by Tetsuo Handa's avatar Tetsuo Handa Committed by Konstantin Komarov
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ntfs3: pretend $Extend records as regular files 



Since commit af153bb6 ("vfs: catch invalid modes in may_open()")
requires any inode be one of S_IFDIR/S_IFLNK/S_IFREG/S_IFCHR/S_IFBLK/
S_IFIFO/S_IFSOCK type, use S_IFREG for $Extend records.

Reported-by: default avatarsyzbot <syzbot+895c23f6917da440ed0d@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=895c23f6917da440ed0d


Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: default avatarKonstantin Komarov <almaz.alexandrovich@paragon-software.com>
parent 21dc07ac

fs/ntfs3/inode.c

+1 −0
Original line number Diff line number Diff line
@@ -471,6 +471,7 @@ static struct inode *ntfs_read_mft(struct inode *inode, 
		   fname->home.seq == cpu_to_le16(MFT_REC_EXTEND)) {

		/* Records in $Extend are not a files or general directories. */

		inode->i_op = &ntfs_file_inode_operations;

		mode = S_IFREG;

	} else {

		err = -EINVAL;

		goto out;