Unverified Commit 37a530bf authored by Konstantin Komarov's avatar Konstantin Komarov
Browse files

fs/ntfs3: Fix missing i_op in ntfs_read_mft 



There is null pointer dereference because i_op == NULL.
The bug happens because we don't initialize i_op for records in $Extend.
Fixes: 82cae269 ("fs/ntfs3: Add initialization of super block")

Reported-by: default avatarLiangbin Lian <jjm2473@gmail.com>
Signed-off-by: default avatarKonstantin Komarov <almaz.alexandrovich@paragon-software.com>
parent 19d1b787

fs/ntfs3/inode.c

+1 −0
Original line number Diff line number Diff line
@@ -430,6 +430,7 @@ static struct inode *ntfs_read_mft(struct inode *inode, 
	} else if (fname && fname->home.low == cpu_to_le32(MFT_REC_EXTEND) &&

		   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;

	} else {

		err = -EINVAL;

		goto out;