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 --- net/bluetooth/Makefile | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 net/bluetooth/Makefile (limited to 'net/bluetooth/Makefile') diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile new file mode 100644 index 000000000..ff466ea97 --- /dev/null +++ b/net/bluetooth/Makefile @@ -0,0 +1,29 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Linux Bluetooth subsystem. +# + +obj-$(CONFIG_BT) += bluetooth.o +obj-$(CONFIG_BT_RFCOMM) += rfcomm/ +obj-$(CONFIG_BT_BNEP) += bnep/ +obj-$(CONFIG_BT_HIDP) += hidp/ +obj-$(CONFIG_BT_6LOWPAN) += bluetooth_6lowpan.o + +bluetooth_6lowpan-y := 6lowpan.o + +bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \ + hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o lib.o \ + ecdh_helper.o mgmt_util.o mgmt_config.o hci_codec.o eir.o hci_sync.o \ + hci_drv.o + +bluetooth-$(CONFIG_DEV_COREDUMP) += coredump.o + +bluetooth-$(CONFIG_BT_BREDR) += sco.o +bluetooth-$(CONFIG_BT_LE) += iso.o +bluetooth-$(CONFIG_BT_LEDS) += leds.o +bluetooth-$(CONFIG_BT_MSFTEXT) += msft.o +bluetooth-$(CONFIG_BT_AOSPEXT) += aosp.o +bluetooth-$(CONFIG_BT_DEBUGFS) += hci_debugfs.o +bluetooth-$(CONFIG_BT_SELFTEST) += selftest.o + +CONTEXT_ANALYSIS := y -- cgit v1.3.1