Commit 8266c231 authored Oct 21, 2020 by Dinghao Liu Committed by Greg Kroah-Hartman Nov 18, 2020

btrfs: ref-verify: fix memory leak in btrfs_ref_tree_mod



commit 468600c6ec28613b756193c5f780aac062f1acdf upstream.

There is one error handling path that does not free ref, which may cause
a minor memory leak.

CC: stable@vger.kernel.org # 4.19+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 062c9b04

fs/btrfs/ref-verify.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -851,6 +851,7 @@ int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info,
		"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;
		}