Unverified Commit 6fa9f090 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14587 jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yongjian Sun <sunyongjian1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/N4H3QTWZ7OATIW5CEWCFHLBHD6GDYTBN/ 
 
https://gitee.com/src-openeuler/kernel/issues/IBEAOK 
 
Link:https://gitee.com/openeuler/kernel/pulls/14587

 

Reviewed-by: default avatarZhang Peng <zhangpeng362@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 89cbe2e2 96d8ca20

fs/jfs/jfs_dmap.c

+3 −0
Original line number Diff line number Diff line
@@ -2888,6 +2888,9 @@ static void dbAdjTree(dmtree_t *tp, int leafno, int newval, bool is_ctl) 
	/* bubble the new value up the tree as required.

	 */

	for (k = 0; k < le32_to_cpu(tp->dmt_height); k++) {

		if (lp == 0)

			break;



		/* get the index of the first leaf of the 4 leaf

		 * group containing the specified leaf (leafno).

		 */