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 --- fs/fuse/Makefile | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 fs/fuse/Makefile (limited to 'fs/fuse/Makefile') diff --git a/fs/fuse/Makefile b/fs/fuse/Makefile new file mode 100644 index 000000000..245e67852 --- /dev/null +++ b/fs/fuse/Makefile @@ -0,0 +1,22 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for the FUSE filesystem. +# + +# Needed for trace events +ccflags-y = -I$(src) + +obj-$(CONFIG_FUSE_FS) += fuse.o +obj-$(CONFIG_CUSE) += cuse.o +obj-$(CONFIG_VIRTIO_FS) += virtiofs.o + +fuse-y := trace.o # put trace.o first so we see ftrace errors sooner +fuse-y += dev.o dir.o file.o inode.o control.o xattr.o acl.o readdir.o ioctl.o req_timeout.o req.o +fuse-y += poll.o notify.o +fuse-y += iomode.o +fuse-$(CONFIG_FUSE_DAX) += dax.o +fuse-$(CONFIG_FUSE_PASSTHROUGH) += passthrough.o backing.o +fuse-$(CONFIG_SYSCTL) += sysctl.o +fuse-$(CONFIG_FUSE_IO_URING) += dev_uring.o + +virtiofs-y := virtio_fs.o -- cgit v1.3.1