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/kunit/clk.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 include/kunit/clk.h (limited to 'include/kunit/clk.h') diff --git a/include/kunit/clk.h b/include/kunit/clk.h new file mode 100644 index 000000000..f226044cc --- /dev/null +++ b/include/kunit/clk.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _CLK_KUNIT_H +#define _CLK_KUNIT_H + +struct clk; +struct clk_hw; +struct device; +struct device_node; +struct of_phandle_args; +struct kunit; + +struct clk * +clk_get_kunit(struct kunit *test, struct device *dev, const char *con_id); +struct clk * +of_clk_get_kunit(struct kunit *test, struct device_node *np, int index); + +struct clk * +clk_hw_get_clk_kunit(struct kunit *test, struct clk_hw *hw, const char *con_id); +struct clk * +clk_hw_get_clk_prepared_enabled_kunit(struct kunit *test, struct clk_hw *hw, + const char *con_id); + +int clk_prepare_enable_kunit(struct kunit *test, struct clk *clk); + +int clk_hw_register_kunit(struct kunit *test, struct device *dev, struct clk_hw *hw); +int of_clk_hw_register_kunit(struct kunit *test, struct device_node *node, + struct clk_hw *hw); + +int of_clk_add_hw_provider_kunit(struct kunit *test, struct device_node *np, + struct clk_hw *(*get)(struct of_phandle_args *clkspec, void *data), + void *data); + +#endif -- cgit v1.3.1