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/rt5682s.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 include/sound/rt5682s.h (limited to 'include/sound/rt5682s.h') diff --git a/include/sound/rt5682s.h b/include/sound/rt5682s.h new file mode 100644 index 000000000..006e6003d --- /dev/null +++ b/include/sound/rt5682s.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * linux/sound/rt5682s.h -- Platform data for RT5682I-VS + * + * Copyright 2021 Realtek Microelectronics + */ + +#ifndef __LINUX_SND_RT5682S_H +#define __LINUX_SND_RT5682S_H + +enum rt5682s_dmic1_data_pin { + RT5682S_DMIC1_DATA_NULL, + RT5682S_DMIC1_DATA_GPIO2, + RT5682S_DMIC1_DATA_GPIO5, +}; + +enum rt5682s_dmic1_clk_pin { + RT5682S_DMIC1_CLK_NULL, + RT5682S_DMIC1_CLK_GPIO1, + RT5682S_DMIC1_CLK_GPIO3, +}; + +enum rt5682s_jd_src { + RT5682S_JD_NULL, + RT5682S_JD1, +}; + +enum rt5682s_dai_clks { + RT5682S_DAI_WCLK_IDX, + RT5682S_DAI_BCLK_IDX, + RT5682S_DAI_NUM_CLKS, +}; + +enum { + RT5682S_LDO_1_607V, + RT5682S_LDO_1_5V, + RT5682S_LDO_1_406V, + RT5682S_LDO_1_731V, +}; + +struct rt5682s_platform_data { + enum rt5682s_dmic1_data_pin dmic1_data_pin; + enum rt5682s_dmic1_clk_pin dmic1_clk_pin; + enum rt5682s_jd_src jd_src; + unsigned int dmic_clk_rate; + unsigned int dmic_delay; + unsigned int amic_delay; + unsigned int ldo_dacref; + bool dmic_clk_driving_high; + + const char *dai_clk_names[RT5682S_DAI_NUM_CLKS]; +}; + +#endif -- cgit v1.3.1