diff options
| author | Mark Harmstone <mark@harmstone.com> | 2026-02-20 15:53:17 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2026-02-26 17:03:29 +0300 |
| commit | f15fb3d41543244d1179f423da4a4832a55bc050 (patch) | |
| tree | d11d679baba98a937313a09c83c11b433953a612 | |
| parent | 587bb33b10bda645a1028c1737ad3992b3d7cf61 (diff) | |
| download | linux-f15fb3d41543244d1179f423da4a4832a55bc050.tar.xz | |
btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()
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>
| -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 50f7aae70418..b8cbd3ecb94d 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6921,8 +6921,10 @@ int btrfs_map_block(struct btrfs_fs_info *fs_info, enum btrfs_map_op op, } 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; |