ext4: fix incorrect type issue during replay_del_range

commit 8fca8a2b0a822f7936130af7299d2fd7f0a66714 upstream.

should not use fast commit log data directly, add le32_to_cpu().

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 0b5b5a62b945 ("ext4: use ext4_ext_remove_space() for fast commit replay delete range")
Cc: stable@kernel.org
Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/20220126063146.2302-1-yinxin.x@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 7fc2fd3..7bcd3be 100644 (file)
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1816,8 +1816,9 @@ ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl,
        }
 
        down_write(&EXT4_I(inode)->i_data_sem);
-       ret = ext4_ext_remove_space(inode, lrange.fc_lblk,
-                               lrange.fc_lblk + lrange.fc_len - 1);
+       ret = ext4_ext_remove_space(inode, le32_to_cpu(lrange.fc_lblk),
+                               le32_to_cpu(lrange.fc_lblk) +
+                               le32_to_cpu(lrange.fc_len) - 1);
        up_write(&EXT4_I(inode)->i_data_sem);
        if (ret)
                goto out;