Fix a memory leak discovered by syzbot when a file system is corrupted
with an illegally large s_log_groups_per_flex.
Reported-by: syzbot+aa12d6106ea4ca1b6aae@syzkaller.appspotmail.com
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20210412073837.1686-1-phil@philpotter.co.uk
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
*/
if (sbi->s_es->s_log_groups_per_flex >= 32) {
ext4_msg(sb, KERN_ERR, "too many log groups per flexible block group");
- goto err_freesgi;
+ goto err_freebuddy;
}
sbi->s_mb_prefetch = min_t(uint, 1 << sbi->s_es->s_log_groups_per_flex,
BLK_MAX_SEGMENT_SIZE >> (sb->s_blocksize_bits - 9));