diff options
| author | Ye Bin <yebin10@huawei.com> | 2022-06-22 12:02:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 12:45:47 +0300 |
| commit | baa9f14ff470b301b6980db4deb58eb0efe79c3c (patch) | |
| tree | 0457bce270489c74f85ad3e6488f6171b3c2e7ab | |
| parent | eb3a4f73f43f839df981dda5859e8e075067a360 (diff) | |
| download | linux-baa9f14ff470b301b6980db4deb58eb0efe79c3c.tar.xz | |
ext4: avoid remove directory when directory is corrupted
[ Upstream commit b24e77ef1c6d4dbf42749ad4903c97539cc9755a ]
Now if check directoy entry is corrupted, ext4_empty_dir may return true
then directory will be removed when file system mounted with "errors=continue".
In order not to make things worse just return false when directory is corrupted.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220622090223.682234-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/ext4/namei.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 4af441494e09..3a31b662f661 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -3090,11 +3090,8 @@ bool ext4_empty_dir(struct inode *inode) de = (struct ext4_dir_entry_2 *) (bh->b_data + (offset & (sb->s_blocksize - 1))); if (ext4_check_dir_entry(inode, NULL, de, bh, - bh->b_data, bh->b_size, offset)) { - offset = (offset | (sb->s_blocksize - 1)) + 1; - continue; - } - if (le32_to_cpu(de->inode)) { + bh->b_data, bh->b_size, offset) || + le32_to_cpu(de->inode)) { brelse(bh); return false; } |