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 --- block/Makefile | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 block/Makefile (limited to 'block/Makefile') diff --git a/block/Makefile b/block/Makefile new file mode 100644 index 000000000..e7bd320e3 --- /dev/null +++ b/block/Makefile @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the kernel block layer +# + +CONTEXT_ANALYSIS := y + +obj-y := bdev.o fops.o bio.o elevator.o blk-core.o blk-sysfs.o \ + blk-flush.o blk-settings.o blk-ioc.o blk-map.o \ + blk-merge.o blk-timeout.o blk-lib.o blk-mq.o \ + blk-mq-tag.o blk-mq-dma.o blk-stat.o \ + blk-mq-sysfs.o blk-mq-cpumap.o blk-mq-sched.o ioctl.o \ + genhd.o ioprio.o badblocks.o partitions/ blk-rq-qos.o \ + disk-events.o blk-ia-ranges.o early-lookup.o + +obj-$(CONFIG_BLK_ERROR_INJECTION) += error-injection.o +obj-$(CONFIG_BLK_DEV_BSG_COMMON) += bsg.o +obj-$(CONFIG_BLK_DEV_BSGLIB) += bsg-lib.o +obj-$(CONFIG_BLK_CGROUP) += blk-cgroup.o +obj-$(CONFIG_BLK_CGROUP_RWSTAT) += blk-cgroup-rwstat.o +obj-$(CONFIG_BLK_CGROUP_FC_APPID) += blk-cgroup-fc-appid.o +obj-$(CONFIG_BLK_DEV_THROTTLING) += blk-throttle.o +obj-$(CONFIG_BLK_CGROUP_IOPRIO) += blk-ioprio.o +obj-$(CONFIG_BLK_CGROUP_IOLATENCY) += blk-iolatency.o +obj-$(CONFIG_BLK_CGROUP_IOCOST) += blk-iocost.o +obj-$(CONFIG_MQ_IOSCHED_DEADLINE) += mq-deadline.o +obj-$(CONFIG_MQ_IOSCHED_KYBER) += kyber-iosched.o +bfq-y := bfq-iosched.o bfq-wf2q.o bfq-cgroup.o +obj-$(CONFIG_IOSCHED_BFQ) += bfq.o + +obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o blk-integrity.o t10-pi.o \ + bio-integrity-auto.o bio-integrity-fs.o +obj-$(CONFIG_BLK_DEV_ZONED) += blk-zoned.o +obj-$(CONFIG_BLK_WBT) += blk-wbt.o +obj-$(CONFIG_BLK_DEBUG_FS) += blk-mq-debugfs.o +obj-$(CONFIG_BLK_SED_OPAL) += sed-opal.o +obj-$(CONFIG_BLK_PM) += blk-pm.o +obj-$(CONFIG_BLK_INLINE_ENCRYPTION) += blk-crypto.o blk-crypto-profile.o \ + blk-crypto-sysfs.o +obj-$(CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK) += blk-crypto-fallback.o +obj-$(CONFIG_BLOCK_HOLDER_DEPRECATED) += holder.o -- cgit v1.3.1