From ff917923f4fb9c83717ba135ee47d7e4c1567bb7 Mon Sep 17 00:00:00 2001 From: Muhammad Bilal Date: Tue, 28 Jul 2026 17:54:55 +0500 Subject: staging: rtl8723bs: fix OOB read in rtw_action_frame_parse() rtw_action_frame_parse() takes a frame_len parameter but never actually checks it before indexing into the frame body: const u8 *frame_body = frame + sizeof(struct ieee80211_hdr_3addr); ... c = frame_body[0]; ... a = frame_body[1]; frame_body already points 24 bytes (sizeof(struct ieee80211_hdr_3addr)) into frame, so reading frame_body[0] and frame_body[1] requires frame_len >= 26. A management action frame shorter than that (e.g. exactly 24 bytes, the minimum a malicious peer can send) causes a 1-2 byte out-of-bounds read. This is reachable from rtw_cfg80211_monitor_if_xmit_entry() and cfg80211_rtw_mgmt_tx() in ioctl_cfg80211.c, both of which pass attacker/user-influenced frame buffers and lengths straight through. Add the missing length check before frame_body is dereferenced. Fixes: 554c0a3abf216 ("staging: Add rtl8723bs sdio wifi driver") Cc: stable@vger.kernel.org Signed-off-by: Muhammad Bilal Link: https://patch.msgid.link/20260728125456.32359-3-meatuni001@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/interconnect/mediatek/Kconfig | 36 +++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 drivers/interconnect/mediatek/Kconfig (limited to 'drivers/interconnect/mediatek/Kconfig') diff --git a/drivers/interconnect/mediatek/Kconfig b/drivers/interconnect/mediatek/Kconfig new file mode 100644 index 000000000..9fd3f2170 --- /dev/null +++ b/drivers/interconnect/mediatek/Kconfig @@ -0,0 +1,36 @@ +# SPDX-License-Identifier: GPL-2.0-only + +config INTERCONNECT_MTK + bool "MediaTek interconnect drivers" + depends on ARCH_MEDIATEK || COMPILE_TEST + help + Support for MediaTek's bus interconnect hardware. + +config INTERCONNECT_MTK_DVFSRC_EMI + tristate "MediaTek DVFSRC EMI interconnect driver" + depends on INTERCONNECT_MTK && MTK_DVFSRC + help + This is a driver for the MediaTek External Memory Interface + interconnect on SoCs equipped with the integrated Dynamic + Voltage Frequency Scaling Resource Collector (DVFSRC) MCU + +config INTERCONNECT_MTK_MT8183 + tristate "MediaTek MT8183 interconnect driver" + depends on INTERCONNECT_MTK_DVFSRC_EMI + help + This is a driver for the MediaTek bus interconnect on MT8183-based + platforms. + +config INTERCONNECT_MTK_MT8195 + tristate "MediaTek MT8195 interconnect driver" + depends on INTERCONNECT_MTK_DVFSRC_EMI + help + This is a driver for the MediaTek bus interconnect on MT8195-based + platforms. + +config INTERCONNECT_MTK_MT8196 + tristate "MediaTek MT8196 interconnect driver" + depends on INTERCONNECT_MTK_DVFSRC_EMI + help + This is a driver for the MediaTek bus interconnect on MT8196-based + platforms. -- cgit v1.3.1