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/of/Makefile | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 drivers/of/Makefile (limited to 'drivers/of/Makefile') diff --git a/drivers/of/Makefile b/drivers/of/Makefile new file mode 100644 index 000000000..379a0afcb --- /dev/null +++ b/drivers/of/Makefile @@ -0,0 +1,27 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-y = base.o cpu.o device.o module.o platform.o property.o +obj-$(CONFIG_OF_KOBJ) += kobj.o +obj-$(CONFIG_OF_DYNAMIC) += dynamic.o +obj-$(CONFIG_OF_FLATTREE) += fdt.o empty_root.dtb.o +obj-$(CONFIG_OF_EARLY_FLATTREE) += fdt_address.o +obj-$(CONFIG_OF_PROMTREE) += pdt.o +obj-$(CONFIG_OF_ADDRESS) += address.o +obj-$(CONFIG_OF_IRQ) += irq.o +obj-$(CONFIG_OF_UNITTEST) += unittest.o +obj-$(CONFIG_OF_RESERVED_MEM) += of_reserved_mem.o +obj-$(CONFIG_OF_RESOLVE) += resolver.o +obj-$(CONFIG_OF_OVERLAY) += overlay.o +obj-$(CONFIG_OF_NUMA) += of_numa.o + +ifdef CONFIG_KEXEC_FILE +ifdef CONFIG_OF_FLATTREE +obj-y += kexec.o +endif +endif + +obj-$(CONFIG_KUNIT) += of_kunit_helpers.o +obj-$(CONFIG_OF_KUNIT_TEST) += of_test.o +obj-$(CONFIG_OF_OVERLAY_KUNIT_TEST) += overlay-test.o +overlay-test-y := overlay_test.o kunit_overlay_test.dtbo.o + +obj-$(CONFIG_OF_UNITTEST) += unittest-data/ -- cgit v1.3.1