Unverified Commit a7969c72 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!12420 nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yifan Qiao <qiaoyifan4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/EBZFAMIO45ZTF6ZVACDOSQ7VBNZEAE5I/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAYRFK 
 
Link:https://gitee.com/openeuler/kernel/pulls/12420

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 15ac0ed2 f181bb28

fs/nilfs2/dat.c

+7 −0
Original line number Diff line number Diff line
@@ -111,6 +111,13 @@ static void nilfs_dat_commit_free(struct inode *dat, 
	kunmap_atomic(kaddr);



	nilfs_dat_commit_entry(dat, req);



	if (unlikely(req->pr_desc_bh == NULL || req->pr_bitmap_bh == NULL)) {

		nilfs_error(dat->i_sb,

			    "state inconsistency probably due to duplicate use of vblocknr = %llu",

			    (unsigned long long)req->pr_entry_nr);

		return;

	}

	nilfs_palloc_commit_free_entry(dat, req);

}