Unverified Commit 41c5e1e7 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14354 btrfs: ref-verify: fix use-after-free after invalid ref action 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yifan Qiao <qiaoyifan4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/I4I65ENFCR4SN4BYCINSKU32ROIYBKEJ/ 
 
https://gitee.com/src-openeuler/kernel/issues/IBEAOH 
 
Link:https://gitee.com/openeuler/kernel/pulls/14354

 

Reviewed-by: default avatarLi Nan <linan122@huawei.com>
Signed-off-by: default avatarLi Nan <linan122@huawei.com>
parents c565fa97 526642ec

fs/btrfs/ref-verify.c

+1 −0
Original line number Diff line number Diff line
@@ -862,6 +862,7 @@ 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);

			rb_erase(&ref->node, &be->refs);

			kfree(ref);

			kfree(ra);

			goto out_unlock;