diff options
| author | Mark Harmstone | 2026-02-20 12:53:17 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2026-03-19 16:08:34 +0100 |
| commit | 7bdf00ed75c477252578068dba19934cd825f20a (patch) | |
| tree | 245af7377c1a1d66dce2048d3b068aaf8fc6c40d /fs | |
| parent | f42b4afdd1f89b1415d4260040af4b636c01b7a6 (diff) | |
btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()
commit f15fb3d41543244d1179f423da4a4832a55bc050 upstream.
Fix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL,
we're not freeing the chunk map that we've just looked up.
Fixes: 0ae653fbec2b ("btrfs: reduce chunk_map lookups in btrfs_map_block()")
CC: stable@vger.kernel.org # 6.12+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Mark Harmstone <mark@harmstone.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/volumes.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 4a1dc4720a0b..3fe3a6c7da4e 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6759,8 +6759,10 @@ int btrfs_map_block(struct btrfs_fs_info *fs_info, enum btrfs_map_op op, return PTR_ERR(map); num_copies = btrfs_chunk_map_num_copies(map); - if (io_geom.mirror_num > num_copies) - return -EINVAL; + if (io_geom.mirror_num > num_copies) { + ret = -EINVAL; + goto out; + } map_offset = logical - map->start; io_geom.raid56_full_stripe_start = (u64)-1; |