From: Xin Yin yinxin.x@bytedance.com
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 --- fs/ext4/fast_commit.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
--- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -1816,8 +1816,9 @@ ext4_fc_replay_del_range(struct super_bl }
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;