diff options
| author | Filipe Manana <fdmanana@suse.com> | 2023-07-03 12:03:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-27 08:50:25 +0200 |
| commit | c35ea606196243063e63785918c7c8fe27c45798 (patch) | |
| tree | 3c409985bc8019fd81cf51ff141940c91cdc6f78 /fs | |
| parent | 0a5e0bc8e8618e32a6ca64450867628eb0a627bf (diff) | |
btrfs: zoned: fix memory leak after finding block group with super blocks
commit f1a07c2b4e2c473ec322b8b9ece071b8c88a3512 upstream.
At exclude_super_stripes(), if we happen to find a block group that has
super blocks mapped to it and we are on a zoned filesystem, we error out
as this is not supposed to happen, indicating either a bug or maybe some
memory corruption for example. However we are exiting the function without
freeing the memory allocated for the logical address of the super blocks.
Fix this by freeing the logical address.
Fixes: 12659251ca5d ("btrfs: implement log-structured superblock for ZONED mode")
CC: stable@vger.kernel.org # 5.10+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/block-group.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index 30b264eb9d20..d93e8735ab1f 100644 --- a/fs/btrfs/block-group.c +++ b/fs/btrfs/block-group.c @@ -1894,6 +1894,7 @@ static int exclude_super_stripes(struct btrfs_block_group *cache) /* Shouldn't have super stripes in sequential zones */ if (zoned && nr) { + kfree(logical); btrfs_err(fs_info, "zoned: block group %llu must not contain super block", cache->start); |