Unverified Commit 8b3738f7 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!12956 wifi: cfg80211: fix buffer overflow in elem comparison 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yi Yang <yiyang13@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/IOTDG6VY7WPCNE6GPZOWG6JT5YHKRNQU/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAYREV 
 
Link:https://gitee.com/openeuler/kernel/pulls/12956

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents c512be26 497089c4

net/wireless/scan.c

+2 −1
Original line number Diff line number Diff line
@@ -330,7 +330,8 @@ static size_t cfg80211_gen_new_ie(const u8 *ie, size_t ielen, 
			 * determine if they are the same ie.

			 */

			if (tmp_old[0] == WLAN_EID_VENDOR_SPECIFIC) {

				if (!memcmp(tmp_old + 2, tmp + 2, 5)) {

				if (tmp_old[1] >= 5 && tmp[1] >= 5 &&

				    !memcmp(tmp_old + 2, tmp + 2, 5)) {

					/* same vendor ie, copy from

					 * subelement

					 */