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/soc/sof/sof-of-dev.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 sound/soc/sof/sof-of-dev.h (limited to 'sound/soc/sof/sof-of-dev.h') diff --git a/sound/soc/sof/sof-of-dev.h b/sound/soc/sof/sof-of-dev.h new file mode 100644 index 000000000..b6cc70595 --- /dev/null +++ b/sound/soc/sof/sof-of-dev.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * Copyright 2021 NXP + */ + +#ifndef __SOUND_SOC_SOF_OF_H +#define __SOUND_SOC_SOF_OF_H + +struct snd_sof_of_mach { + const char *compatible; + const char *drv_name; + const char *fw_filename; + const char *sof_tplg_filename; +}; + +extern const struct dev_pm_ops sof_of_pm; + +int sof_of_probe(struct platform_device *pdev); +void sof_of_remove(struct platform_device *pdev); +void sof_of_shutdown(struct platform_device *pdev); + +#endif -- cgit v1.3.1