Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix OOB write in snd_usbmidi_us122l_output() The snd_usbmidi_us122l_output() picks a count of 2 on anything slower than high speed and never relates it to ep->max_transfer. The URB buffer holds exactly max_transfer bytes, so a device declaring a one byte bulk endpoint takes two bytes from snd_rawmidi_transmit(), and the memset that pads the rest computes 1 - 2 in int and wraps to SIZE_MAX. Only 0x800e and 0x800f are pinned to nine bytes. The US-122MKII at 0x0644:0x8021 falls to the default and takes usb_maxpacket(), which the USB core only clamps downward. The akai and novation output ops in this file were given the same guard recently. Do the same here.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
030a07e441296c372f946cd4065b5d831d8dc40c to < 5538daf2a5cc80ac3f3e913c0db045d92d995d40affected030a07e441296c372f946cd4065b5d831d8dc40c to < a441a8e52148c91c2f2a91f42e3b9bc961a13a4baffected030a07e441296c372f946cd4065b5d831d8dc40c to < 2dae0e3a59e31f78222279d544b98e747cd1fbffaffected030a07e441296c372f946cd4065b5d831d8dc40c to < 1d4add2b832b56f81bb0eab065ec35c610343018affected030a07e441296c372f946cd4065b5d831d8dc40c to < de6d252f115be887a701c09a05cdb076f3a590c9affected030a07e441296c372f946cd4065b5d831d8dc40c to < 9392a2c346762ffee8edd1ba8bac50d2e24a2ed7affected030a07e441296c372f946cd4065b5d831d8dc40c to < 9d81885d97cba7796d1f8edc88f2499c8296f5b9affected030a07e441296c372f946cd4065b5d831d8dc40c to < e4637ce34607f1733a34a57294966d26b263e626affected
Linux Linux
Default version status: affected
2.6.28affected0 to < 2.6.28unaffected5.10.270 to ≤ 5.10.*unaffected5.15.221 to ≤ 5.15.*unaffected6.1.188 to ≤ 6.1.*unaffected6.6.157 to ≤ 6.6.*unaffected6.12.110 to ≤ 6.12.*unaffected6.18.51 to ≤ 6.18.*unaffected7.2.5 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/5538daf2a5cc80ac3f3e913c0db045d92d995d40 ↗
- https://git.kernel.org/stable/c/a441a8e52148c91c2f2a91f42e3b9bc961a13a4b ↗
- https://git.kernel.org/stable/c/2dae0e3a59e31f78222279d544b98e747cd1fbff ↗
- https://git.kernel.org/stable/c/1d4add2b832b56f81bb0eab065ec35c610343018 ↗
- https://git.kernel.org/stable/c/de6d252f115be887a701c09a05cdb076f3a590c9 ↗
- https://git.kernel.org/stable/c/9392a2c346762ffee8edd1ba8bac50d2e24a2ed7 ↗
- https://git.kernel.org/stable/c/9d81885d97cba7796d1f8edc88f2499c8296f5b9 ↗
- https://git.kernel.org/stable/c/e4637ce34607f1733a34a57294966d26b263e626 ↗