Unverified Commit b7072b5c authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!10255 dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list 

Merge Pull Request from: @ci-robot 
 
PR sync from: Liu Shixin <liushixin2@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/OUQMNQK7HGPDNXGVSA5PEVCYA24ZZSXS/ 
 
https://gitee.com/src-openeuler/kernel/issues/IACZX7 
 
Link:https://gitee.com/openeuler/kernel/pulls/10255

 

Reviewed-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 8ffa05b6 f78e1b84

drivers/dma/idxd/irq.c

+3 −1
Original line number Diff line number Diff line
@@ -454,11 +454,13 @@ static void irq_process_work_list(struct idxd_irq_entry *irq_entry) 


	spin_unlock(&irq_entry->list_lock);



	list_for_each_entry(desc, &flist, list) {

	list_for_each_entry_safe(desc, n, &flist, list) {

		/*

		 * Check against the original status as ABORT is software defined

		 * and 0xff, which DSA_COMP_STATUS_MASK can mask out.

		 */

		list_del(&desc->list);



		if (unlikely(desc->completion->status == IDXD_COMP_DESC_ABORT)) {

			idxd_dma_complete_txd(desc, IDXD_COMPLETE_ABORT, true);

			continue;