From: Dinghao Liu <dinghao.liu@xxxxxxxxxx> commit 468600c6ec28613b756193c5f780aac062f1acdf upstream. There is one error handling path that does not free ref, which may cause a minor memory leak. CC: stable@xxxxxxxxxxxxxxx # 4.19+ Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx> Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx> Reviewed-by: David Sterba <dsterba@xxxxxxxx> Signed-off-by: David Sterba <dsterba@xxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/btrfs/ref-verify.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/btrfs/ref-verify.c +++ b/fs/btrfs/ref-verify.c @@ -854,6 +854,7 @@ int btrfs_ref_tree_mod(struct btrfs_root "dropping a ref for a root that doesn't have a ref on the block"); dump_block_entry(fs_info, be); dump_ref_action(fs_info, ra); + kfree(ref); kfree(ra); goto out_unlock; }
