Unverified Commit 4d7999ed authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14792 jfs: fix shift-out-of-bounds in dbSplit 

Merge Pull Request from: @ci-robot 
 
PR sync from: Heyuan Wang <wangheyuan2@h-partners.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/L2RTJ5NMQHZF5CXQ6P675TL5XDH7VJZW/ 
 
https://gitee.com/src-openeuler/kernel/issues/IBEAOT 
 
Link:https://gitee.com/openeuler/kernel/pulls/14792

 

Reviewed-by: default avatarZhang Peng <zhangpeng362@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 4cd5f3a7 ced07561

fs/jfs/jfs_dmap.c

+3 −0
Original line number Diff line number Diff line
@@ -1820,6 +1820,9 @@ dbAllocCtl(struct bmap * bmp, s64 nblocks, int l2nb, s64 blkno, s64 * results) 
			return -EIO;

		dp = (struct dmap *) mp->data;



		if (dp->tree.budmin < 0)

			return -EIO;



		/* try to allocate the blocks.

		 */

		rc = dbAllocDmapLev(bmp, dp, (int) nblocks, l2nb, results);