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/base/Makefile | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 drivers/base/Makefile (limited to 'drivers/base/Makefile') diff --git a/drivers/base/Makefile b/drivers/base/Makefile new file mode 100644 index 000000000..435710f64 --- /dev/null +++ b/drivers/base/Makefile @@ -0,0 +1,36 @@ +# SPDX-License-Identifier: GPL-2.0 +# Makefile for the Linux device tree + +obj-y := component.o core.o bus.o dd.o syscore.o \ + driver.o class.o platform.o \ + cpu.o firmware.o init.o map.o devres.o \ + attribute_container.o transport_class.o \ + topology.o container.o property.o cacheinfo.o \ + swnode.o faux.o +obj-$(CONFIG_AUXILIARY_BUS) += auxiliary.o +obj-$(CONFIG_DEVTMPFS) += devtmpfs.o +obj-y += power/ +obj-$(CONFIG_ISA_BUS_API) += isa.o +obj-y += firmware_loader/ +obj-$(CONFIG_NUMA) += node.o +obj-$(CONFIG_MEMORY_HOTPLUG) += memory.o +ifeq ($(CONFIG_SYSFS),y) +obj-$(CONFIG_MODULES) += module.o +obj-$(CONFIG_AUXILIARY_BUS) += auxiliary_sysfs.o +endif +obj-$(CONFIG_SYS_HYPERVISOR) += hypervisor.o +obj-$(CONFIG_REGMAP) += regmap/ +obj-$(CONFIG_SOC_BUS) += soc.o +obj-$(CONFIG_PINCTRL) += pinctrl.o +obj-$(CONFIG_DEV_COREDUMP) += devcoredump.o +obj-$(CONFIG_GENERIC_MSI_IRQ) += platform-msi.o +obj-$(CONFIG_GENERIC_ARCH_TOPOLOGY) += arch_topology.o +obj-$(CONFIG_ACPI) += physical_location.o + +obj-y += test/ + +ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG + +# define_trace.h needs to know how to find our header +CFLAGS_trace.o := -I$(src) +obj-$(CONFIG_TRACING) += trace.o -- cgit v1.3.1