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/integrity/Makefile | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 security/integrity/Makefile (limited to 'security/integrity/Makefile') diff --git a/security/integrity/Makefile b/security/integrity/Makefile new file mode 100644 index 000000000..45dfdedbd --- /dev/null +++ b/security/integrity/Makefile @@ -0,0 +1,24 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for caching inode integrity data (iint) +# + +obj-$(CONFIG_INTEGRITY) += integrity.o + +integrity-y := iint.o +integrity-$(CONFIG_INTEGRITY_AUDIT) += integrity_audit.o +integrity-$(CONFIG_INTEGRITY_SIGNATURE) += digsig.o +integrity-$(CONFIG_INTEGRITY_ASYMMETRIC_KEYS) += digsig_asymmetric.o +integrity-$(CONFIG_INTEGRITY_PLATFORM_KEYRING) += platform_certs/platform_keyring.o +integrity-$(CONFIG_INTEGRITY_MACHINE_KEYRING) += platform_certs/machine_keyring.o +integrity-$(CONFIG_LOAD_UEFI_KEYS) += platform_certs/efi_parser.o \ + platform_certs/load_uefi.o \ + platform_certs/keyring_handler.o +integrity-$(CONFIG_LOAD_IPL_KEYS) += platform_certs/load_ipl_s390.o +integrity-$(CONFIG_LOAD_PPC_KEYS) += platform_certs/efi_parser.o \ + platform_certs/load_powerpc.o \ + platform_certs/keyring_handler.o +integrity-$(CONFIG_EFI) += efi_secureboot.o +# The relative order of the 'ima' and 'evm' LSMs depends on the order below. +obj-$(CONFIG_IMA) += ima/ +obj-$(CONFIG_EVM) += evm/ -- cgit v1.3.1