Unverified Commit 8fbcff00 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14233 block, bfq: fix possible UAF for bfqq->bic with merge chain 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zheng Qixing <zhengqixing@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/5TZM3EFW2VDFARXAMJVZQFIGVLK7M4IA/ 
 
https://gitee.com/openeuler/kernel/issues/IBANLW 
 
Link:https://gitee.com/openeuler/kernel/pulls/14233
parents dda59452 696c137e

block/bfq-iosched.c

+2 −1
Original line number Diff line number Diff line
@@ -5210,7 +5210,8 @@ static struct bfq_queue *bfq_init_rq(struct request *rq) 
	 * addition, if the queue has also just been split, we have to

	 * resume its state.

	 */

	if (likely(bfqq != &bfqd->oom_bfqq) && bfqq_process_refs(bfqq) == 1) {

	if (likely(bfqq != &bfqd->oom_bfqq) && !bfqq->new_bfqq &&

	    bfqq_process_refs(bfqq) == 1) {

		bfqq->bic = bic;

		if (split) {

			/*