Unverified Commit 4ca5cfae authored Aug 01, 2024 by openeuler-ci-bot Committed by Gitee Aug 01, 2024

!10383 filelock: fix potential use-after-free in posix_lock_inode

Merge Pull Request from: @ci-robot 
 
PR sync from: Yifan Qiao <qiaoyifan4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/G6XCCEPLVMHCNE4IYG6HKFIC7UP3FO4D/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAGEKN 
 
Link:https://gitee.com/openeuler/kernel/pulls/10383

 

Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>

parents 39d17121 592950ac

fs/locks.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1337,9 +1337,9 @@ static int posix_lock_inode(struct inode inode, struct file_lock request,
		locks_wake_up_blocks(left);
		}
		out:
		trace_posix_lock_inode(inode, request, error);
		spin_unlock(&ctx->flc_lock);
		percpu_up_read(&file_rwsem);
		trace_posix_lock_inode(inode, request, error);
		/*
		* Free any unused locks.
		*/