Unverified Commit 307f7fa9 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!9582 v2 eventfs: Fix a possible null pointer dereference in eventfs_find_events() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yipeng Zou <zouyipeng@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/C3TW52S7K62WM3VDROBKLHDOLQ7BOAU6/ 
 
https://gitee.com/src-openeuler/kernel/issues/IA8ADN 
 
Link:https://gitee.com/openeuler/kernel/pulls/9582

 

Reviewed-by: default avatarZhang Peng <zhangpeng362@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 143b8926 85e8d18e

fs/tracefs/event_inode.c

+3 −4
Original line number Diff line number Diff line
@@ -295,10 +295,9 @@ static struct eventfs_inode *eventfs_find_events(struct dentry *dentry) 
		 * If the ei is being freed, the ownership of the children

		 * doesn't matter.

		 */

		if (ei->is_freed) {

			ei = NULL;

			break;

		}

		if (ei->is_freed)

			return NULL;



		// Walk upwards until you find the events inode

	} while (!ei->is_events);