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 --- include/sound/wm8993.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 include/sound/wm8993.h (limited to 'include/sound/wm8993.h') diff --git a/include/sound/wm8993.h b/include/sound/wm8993.h new file mode 100644 index 000000000..8cf9de85d --- /dev/null +++ b/include/sound/wm8993.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * linux/sound/wm8993.h -- Platform data for WM8993 + * + * Copyright 2009 Wolfson Microelectronics. PLC. + */ + +#ifndef __LINUX_SND_WM8993_H +#define __LINUX_SND_WM8993_H + +/* Note that EQ1 only contains the enable/disable bit so will be + ignored but is included for simplicity. + */ +struct wm8993_retune_mobile_setting { + const char *name; + unsigned int rate; + u16 config[24]; +}; + +struct wm8993_platform_data { + struct wm8993_retune_mobile_setting *retune_configs; + int num_retune_configs; + + /* LINEOUT can be differential or single ended */ + unsigned int lineout1_diff:1; + unsigned int lineout2_diff:1; + + /* Common mode feedback */ + unsigned int lineout1fb:1; + unsigned int lineout2fb:1; + + /* Delay to add for microphones to stabalise after power up */ + int micbias1_delay; + int micbias2_delay; + + /* Microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */ + unsigned int micbias1_lvl:1; + unsigned int micbias2_lvl:1; + + /* Jack detect threshold levels, see datasheet for values */ + unsigned int jd_scthr:2; + unsigned int jd_thr:2; +}; + +#endif -- cgit v1.3.1