DivestOS/Patches/Linux_CVEs/CVE-2017-8269/ANY/0.patch
2017-10-29 22:14:37 -04:00

39 lines
1.5 KiB
Diff

From b925d9f76164475abb6f6a557327095156c9b249 Mon Sep 17 00:00:00 2001
From: Skylar Chang <chiaweic@codeaurora.org>
Date: Fri, 14 Apr 2017 19:23:05 -0700
Subject: msm: rmnet_ipa: fix security issue
Fix the security issue where mux channel name might
not be null-terminated in ipa wan driver.
Change-Id: I3ef440b62cf3861464fb60c1e7f65f2be5e39ed0
Acked-by: Shihuan Liu <shihuanl@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
---
drivers/platform/msm/ipa/rmnet_ipa.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/msm/ipa/rmnet_ipa.c b/drivers/platform/msm/ipa/rmnet_ipa.c
index 3f073f2..a2c838b 100644
--- a/drivers/platform/msm/ipa/rmnet_ipa.c
+++ b/drivers/platform/msm/ipa/rmnet_ipa.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2017, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -1236,6 +1236,9 @@ static int ipa_wwan_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
memcpy(mux_channel[rmnet_index].vchannel_name,
extend_ioctl_data.u.rmnet_mux_val.vchannel_name,
sizeof(mux_channel[rmnet_index].vchannel_name));
+ mux_channel[rmnet_index].vchannel_name[
+ IFNAMSIZ - 1] = '\0';
+
IPAWANDBG("cashe device[%s:%d] in IPA_wan[%d]\n",
mux_channel[rmnet_index].vchannel_name,
mux_channel[rmnet_index].mux_id,
--
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