staging: rtl8723bs: fix OOB read in rtw_action_frame_parse()grafted

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 <meatuni001@gmail.com>
Link: https://patch.msgid.link/20260728125456.32359-3-meatuni001@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile
new file mode 100644
index 000000000..2c33b83f3
--- /dev/null
+++ b/drivers/crypto/Makefile
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_CRYPTO_DEV_ALLWINNER) += allwinner/
+obj-$(CONFIG_CRYPTO_DEV_ASPEED) += aspeed/
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_AES) += atmel-aes.o
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA) += atmel-sha.o
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_TDES) += atmel-tdes.o
+# __init ordering requires atmel-i2c being before atmel-ecc and atmel-sha204a.
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_I2C) += atmel-i2c.o
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_ECC) += atmel-ecc.o
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA204A) += atmel-sha204a.o
+obj-$(CONFIG_CRYPTO_DEV_CCP) += ccp/
+obj-$(CONFIG_CRYPTO_DEV_CCREE) += ccree/
+obj-$(CONFIG_CRYPTO_DEV_CHELSIO) += chelsio/
+obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_COMMON) += caam/
+obj-$(CONFIG_CRYPTO_DEV_GEODE) += geode-aes.o
+obj-$(CONFIG_CRYPTO_DEV_HIFN_795X) += hifn_795x.o
+obj-$(CONFIG_CRYPTO_DEV_IMGTEC_HASH) += img-hash.o
+obj-$(CONFIG_CRYPTO_DEV_MARVELL) += marvell/
+obj-$(CONFIG_CRYPTO_DEV_MXS_DCP) += mxs-dcp.o
+obj-$(CONFIG_CRYPTO_DEV_NX) += nx/
+obj-$(CONFIG_CRYPTO_DEV_OMAP) += omap-crypto.o
+obj-$(CONFIG_CRYPTO_DEV_OMAP_AES) += omap-aes-driver.o
+omap-aes-driver-objs := omap-aes.o omap-aes-gcm.o
+obj-$(CONFIG_CRYPTO_DEV_OMAP_DES) += omap-des.o
+obj-$(CONFIG_CRYPTO_DEV_OMAP_SHAM) += omap-sham.o
+obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o
+obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o
+obj-$(CONFIG_CRYPTO_DEV_PPC4XX) += amcc/
+obj-$(CONFIG_CRYPTO_DEV_QCE) += qce/
+obj-$(CONFIG_CRYPTO_DEV_ROCKCHIP) += rockchip/
+obj-$(CONFIG_CRYPTO_DEV_S5P) += s5p-sss.o
+obj-$(CONFIG_CRYPTO_DEV_SA2UL) += sa2ul.o
+obj-$(CONFIG_CRYPTO_DEV_SAHARA) += sahara.o
+obj-$(CONFIG_CRYPTO_DEV_SL3516) += gemini/
+obj-y += stm32/
+obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o
+obj-$(CONFIG_CRYPTO_DEV_TEGRA) += tegra/
+obj-$(CONFIG_CRYPTO_DEV_VIRTIO) += virtio/
+obj-$(CONFIG_CRYPTO_DEV_BCM_SPU) += bcm/
+obj-y += inside-secure/
+obj-$(CONFIG_CRYPTO_DEV_ARTPEC6) += axis/
+obj-y += xilinx/
+obj-y += hisilicon/
+obj-$(CONFIG_CRYPTO_DEV_AMLOGIC_GXL) += amlogic/
+obj-y += intel/
+obj-y += starfive/
+obj-y += cavium/
+obj-y += ti/