Re: [PATCH] ALSA: usb-audio: Fix an out-of-bounds bug in __snd_usb_parse_audio_interface()

On Tue, 06 Sep 2022 04:49:28 +0200, Dongxiang Ke wrote:

There may be a bad USB audio device with a USB ID of (0x04fa, 0x4201) and the number of it's interfaces less than 4, an out-of-bounds read bug occurs when parsing the interface descriptor for this device.

Fix this by checking the number of interfaces.

Signed-off-by: Dongxiang Ke kdx.glider@gmail.com

Thanks, applied.

Takashi