linux-kernel - [PATCH v2 1/8] staging: r8188eu: use mac_pton() in rtw_macaddr

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210830121508.6411-2-straube.linux@gmail.com>
Date:   Mon, 30 Aug 2021 14:15:01 +0200
From:   Michael Straube <straube.linux@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, phil@...lpotter.co.uk, martin@...ser.cx,
        fmdefrancesco@...il.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Subject: [PATCH v2 1/8] staging: r8188eu: use mac_pton() in rtw_macaddr_cfg()

Instead of a custom approach use mac_pton() to convert the mac
address string. With mac_pton() the driver also validates the
input now.

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/staging/r8188eu/core/rtw_ieee80211.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_ieee80211.c b/drivers/staging/r8188eu/core/rtw_ieee80211.c
index b3a74198596a..205798b76cf9 100644
--- a/drivers/staging/r8188eu/core/rtw_ieee80211.c
+++ b/drivers/staging/r8188eu/core/rtw_ieee80211.c
@@ -1024,13 +1024,11 @@ void rtw_macaddr_cfg(u8 *mac_addr)
 	if (!mac_addr)
 		return;
 
-	if (rtw_initmac) {	/* Users specify the mac address */
-		int jj, kk;
-
-		for (jj = 0, kk = 0; jj < ETH_ALEN; jj++, kk += 3)
-			mac[jj] = key_2char2num(rtw_initmac[kk], rtw_initmac[kk + 1]);
+	if (rtw_initmac && mac_pton(rtw_initmac, mac)) {
+		/* Users specify the mac address */
 		memcpy(mac_addr, mac, ETH_ALEN);
-	} else {	/* Use the mac address stored in the Efuse */
+	} else {
+		/* Use the mac address stored in the Efuse */
 		memcpy(mac, mac_addr, ETH_ALEN);
 	}
 
-- 
2.33.0