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 --- security/Makefile | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 security/Makefile (limited to 'security/Makefile') diff --git a/security/Makefile b/security/Makefile new file mode 100644 index 000000000..4601230ba --- /dev/null +++ b/security/Makefile @@ -0,0 +1,31 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the kernel security code +# + +obj-$(CONFIG_KEYS) += keys/ + +# always enable default capabilities +obj-y += commoncap.o +obj-$(CONFIG_SECURITY) += lsm_syscalls.o +obj-$(CONFIG_MMU) += min_addr.o + +# Object file lists +obj-$(CONFIG_SECURITY) += security.o lsm_notifier.o lsm_init.o +obj-$(CONFIG_SECURITYFS) += inode.o +obj-$(CONFIG_SECURITY_SELINUX) += selinux/ +obj-$(CONFIG_SECURITY_SMACK) += smack/ +obj-$(CONFIG_HAS_SECURITY_AUDIT) += lsm_audit.o +obj-$(CONFIG_SECURITY_TOMOYO) += tomoyo/ +obj-$(CONFIG_SECURITY_APPARMOR) += apparmor/ +obj-$(CONFIG_SECURITY_YAMA) += yama/ +obj-$(CONFIG_SECURITY_LOADPIN) += loadpin/ +obj-$(CONFIG_SECURITY_SAFESETID) += safesetid/ +obj-$(CONFIG_SECURITY_LOCKDOWN_LSM) += lockdown/ +obj-$(CONFIG_CGROUPS) += device_cgroup.o +obj-$(CONFIG_BPF_LSM) += bpf/ +obj-$(CONFIG_SECURITY_LANDLOCK) += landlock/ +obj-$(CONFIG_SECURITY_IPE) += ipe/ + +# Object integrity file lists +obj-$(CONFIG_INTEGRITY) += integrity/ -- cgit v1.3.1