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 --- drivers/video/Makefile | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 drivers/video/Makefile (limited to 'drivers/video/Makefile') diff --git a/drivers/video/Makefile b/drivers/video/Makefile new file mode 100644 index 000000000..ffbac4387 --- /dev/null +++ b/drivers/video/Makefile @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_APERTURE_HELPERS) += aperture.o +obj-$(CONFIG_SCREEN_INFO) += screen_info.o +obj-$(CONFIG_STI_CORE) += sticore.o +obj-$(CONFIG_VGASTATE) += vgastate.o +obj-$(CONFIG_VIDEO) += cmdline.o nomodeset.o +obj-$(CONFIG_HDMI) += hdmi.o + +screen_info-y := screen_info_generic.o +screen_info-$(CONFIG_PCI) += screen_info_pci.o + +obj-$(CONFIG_VT) += console/ +obj-$(CONFIG_FB_STI) += console/ +obj-$(CONFIG_LOGO) += logo/ +obj-y += backlight/ + +obj-y += fbdev/ + +obj-$(CONFIG_VIDEOMODE_HELPERS) += display_timing.o videomode.o +ifeq ($(CONFIG_OF),y) +obj-$(CONFIG_VIDEOMODE_HELPERS) += of_display_timing.o of_videomode.o +endif -- cgit v1.3.1