staging: rtl8723bs: fix OOB read in rtw_action_frame_parse()grafted

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 <meatuni001@gmail.com>
Link: https://patch.msgid.link/20260728125456.32359-3-meatuni001@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/rust/zerocopy/rustdoc/style.css b/rust/zerocopy/rustdoc/style.css
new file mode 100644
index 000000000..d2d55ad2e
--- /dev/null
+++ b/rust/zerocopy/rustdoc/style.css
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: (BSD-2-Clause OR Apache-2.0) OR MIT */
+/*
+Copyright 2026 The Fuchsia Authors
+
+Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+<LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+This file may not be copied, modified, or distributed except according to
+those terms.
+*/
+
+.codegen-tabs {
+    display: grid;
+    grid-template-columns: repeat(var(--arity), minmax(200px, 1fr));
+    grid-template-rows: auto 1fr;
+    column-gap: 1rem;
+}
+
+.codegen-tabs:not(:has(> details[open]))::after {
+    grid-column: 1/-1;
+    content: 'Click one of the above headers to expand its contents.';
+    font-style: italic;
+    font-size: small;
+    text-align: center;
+}
+
+.codegen-tabs details {
+    display: grid;
+    grid-column: 1 / -1;
+    grid-row: 1 / span 2;
+    grid-template-columns: subgrid;
+    grid-template-rows: subgrid;
+}
+
+.codegen-tabs summary {
+    display: grid;
+    grid-column: var(--n) / span 1;
+    grid-row: 1;
+    z-index: 1;
+    border-bottom: 2px solid var(--headings-border-bottom-color);
+    cursor: pointer;
+}
+
+.codegen-tabs details[open] > summary {
+    background-color: var(--code-block-background-color);
+    border-bottom-color: var(--target-border-color);
+}
+
+.codegen-tabs details::details-content {
+    grid-column: 1 / -1;
+    grid-row: 2;
+}
+
+.codegen-tabs details:not([open])::details-content {
+    display: none;
+}