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 --- Documentation/gpu/drivers.rst | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/gpu/drivers.rst (limited to 'Documentation/gpu/drivers.rst') diff --git a/Documentation/gpu/drivers.rst b/Documentation/gpu/drivers.rst new file mode 100644 index 000000000..20d2c454a --- /dev/null +++ b/Documentation/gpu/drivers.rst @@ -0,0 +1,29 @@ +======================== +GPU Driver Documentation +======================== + +.. toctree:: + :maxdepth: 3 + + amdgpu/index + i915 + imagination/index + intel-display/index + mcde + meson + nouveau + pl111 + tegra + tve200 + v3d + vc4 + vkms + bridge/dw-hdmi + xen-front + xe/index + afbc + komeda-kms + panfrost + panthor + zynqmp + nova/index -- cgit v1.3.1