From 9062d50e75c24dc7911be05c9b1719b3b256af15 Mon Sep 17 00:00:00 2001 From: Liu Chao Date: Mon, 21 Sep 2026 15:25:51 +0800 Subject: usb: gadget: f_uac1_legacy: validate bRequest index in generic_{set,get}_cmd generic_set_cmd() and generic_get_cmd() use the low nibble of ctrl->bRequest as an index into con->data[]: u8 cmd = (ctrl->bRequest & 0x0F); /* 0 .. 15 */ ... con->data[cmd] = value; /* OOB when cmd >= 5 */ struct usb_audio_control (include/linux/usb/audio.h) declares data as a 5-element array, so indices 5 through 15 write (or read) up to 44 bytes past the end of the array on the heap. A malicious USB host can craft a class-specific SET_CUR / GET_CUR request with an arbitrary bRequest value, triggering the out-of-bounds access from an IRQ completion handler with no further preconditions. Add an ARRAY_SIZE() guard to both functions. Fixes: c47d7b09891a ("USB: audio: add USB audio class definitions") Cc: stable Reviewed-by: Weibin Liu Signed-off-by: Liu Chao Reviewed-by: Ivy Lopez Link: https://patch.msgid.link/20260921072551.3708191-1-liuc63@xiaopeng.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/Makefile | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 drivers/usb/misc/Makefile (limited to 'drivers/usb/misc/Makefile') diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile new file mode 100644 index 000000000..494ab0377 --- /dev/null +++ b/drivers/usb/misc/Makefile @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the rest of the USB drivers +# (the ones that don't fit into any other categories) +# +obj-$(CONFIG_USB_ADUTUX) += adutux.o +obj-$(CONFIG_USB_APPLEDISPLAY) += appledisplay.o +obj-$(CONFIG_USB_CYPRESS_CY7C63) += cypress_cy7c63.o +obj-$(CONFIG_USB_CYTHERM) += cytherm.o +obj-$(CONFIG_USB_EMI26) += emi26.o +obj-$(CONFIG_USB_EMI62) += emi62.o +obj-$(CONFIG_USB_EZUSB_FX2) += ezusb.o +obj-$(CONFIG_APPLE_MFI_FASTCHARGE) += apple-mfi-fastcharge.o +obj-$(CONFIG_USB_LJCA) += usb-ljca.o +obj-$(CONFIG_USB_USBIO) += usbio.o +obj-$(CONFIG_USB_IDMOUSE) += idmouse.o +obj-$(CONFIG_USB_IOWARRIOR) += iowarrior.o +obj-$(CONFIG_USB_ISIGHTFW) += isight_firmware.o +obj-$(CONFIG_USB_LCD) += usblcd.o +obj-$(CONFIG_USB_LD) += ldusb.o +obj-$(CONFIG_USB_LEGOTOWER) += legousbtower.o +obj-$(CONFIG_USB_QCOM_EUD) += qcom_eud.o +obj-$(CONFIG_USB_TEST) += usbtest.o +obj-$(CONFIG_USB_EHSET_TEST_FIXTURE) += ehset.o +obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o +obj-$(CONFIG_USB_USS720) += uss720.o +obj-$(CONFIG_USB_SEVSEG) += usbsevseg.o +obj-$(CONFIG_USB_YUREX) += yurex.o +obj-$(CONFIG_USB_HUB_USB251XB) += usb251xb.o +obj-$(CONFIG_USB_HSIC_USB3503) += usb3503.o +obj-$(CONFIG_USB_HSIC_USB4604) += usb4604.o +obj-$(CONFIG_USB_CHAOSKEY) += chaoskey.o + +obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/ +obj-$(CONFIG_USB_LINK_LAYER_TEST) += lvstest.o +obj-$(CONFIG_BRCM_USB_PINMAP) += brcmstb-usb-pinmap.o +obj-$(CONFIG_USB_ONBOARD_DEV) += onboard_usb_dev.o -- cgit v1.3.1