| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 109/151] btrfs: ref-verify: fix memory leak in btrfs_ref_tree_mod | Date | Tue, 17 Nov 2020 14:05:39 +0100 |
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From: Dinghao Liu <dinghao.liu@zju.edu.cn>
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>
--- fs/btrfs/ref-verify.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/btrfs/ref-verify.c +++ b/fs/btrfs/ref-verify.c @@ -851,6 +851,7 @@ int btrfs_ref_tree_mod(struct btrfs_fs_i "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; }
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