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 --- sound/drivers/Makefile | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 sound/drivers/Makefile (limited to 'sound/drivers/Makefile') diff --git a/sound/drivers/Makefile b/sound/drivers/Makefile new file mode 100644 index 000000000..a08bdd70e --- /dev/null +++ b/sound/drivers/Makefile @@ -0,0 +1,28 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for ALSA +# Copyright (c) 2001 by Jaroslav Kysela +# + +snd-dummy-y := dummy.o +snd-aloop-y := aloop.o +snd-mtpav-y := mtpav.o +snd-mts64-y := mts64.o +snd-pcmtest-y := pcmtest.o +snd-portman2x4-y := portman2x4.o +snd-serial-u16550-y := serial-u16550.o +snd-serial-generic-y := serial-generic.o +snd-virmidi-y := virmidi.o + +# Toplevel Module Dependency +obj-$(CONFIG_SND_DUMMY) += snd-dummy.o +obj-$(CONFIG_SND_ALOOP) += snd-aloop.o +obj-$(CONFIG_SND_VIRMIDI) += snd-virmidi.o +obj-$(CONFIG_SND_PCMTEST) += snd-pcmtest.o +obj-$(CONFIG_SND_SERIAL_U16550) += snd-serial-u16550.o +obj-$(CONFIG_SND_SERIAL_GENERIC) += snd-serial-generic.o +obj-$(CONFIG_SND_MTPAV) += snd-mtpav.o +obj-$(CONFIG_SND_MTS64) += snd-mts64.o +obj-$(CONFIG_SND_PORTMAN2X4) += snd-portman2x4.o + +obj-$(CONFIG_SND) += opl3/ opl4/ mpu401/ vx/ pcsp/ -- cgit v1.3.1