Unverified Commit 44530061 authored Aug 01, 2024 by openeuler-ci-bot Committed by Gitee Aug 01, 2024

!10380 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/YLKSJHS27BCUZI6COMA4NYI4IDISMRQF/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAGEKN 
 
Link:https://gitee.com/openeuler/kernel/pulls/10380

 

Reviewed-by: Zhang Peng <zhangpeng362@huawei.com>
Signed-off-by: Zhang Peng <zhangpeng362@huawei.com>

parents 9ecc9b64 120a1814

fs/locks.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1314,9 +1314,9 @@ 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.
		*/