Answer in brief
CVE-2026-90033 records a Unknown severity vulnerability in ALSA: usb-audio: fix OOB write in snd_usbmidi_us122l_output(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=030a07e441296c372f946cd4065b5d831d8dc40c <5538daf2a5cc80ac3f3e913c0db045d92d995d40 || >=030a07e441296c372f946cd4065b5d831d8dc40c <a441a8e52148c91c2f2a91f42e3b9bc961a13a4b || >=030a07e441296c372f946cd4065b5d831d8dc40c <2dae0e3a59e31f78222279d544b98e747cd1fbff || >=030a07e441296c372f946cd4065b5d831d8dc40c <1d4add2b832b56f81bb0eab065ec35c610343018 || >=030a07e441296c372f946cd4065b5d831d8dc40c <de6d252f115be887a701c09a05cdb076f3a590c9 || >=030a07e441296c372f946cd4065b5d831d8dc40c <9392a2c346762ffee8edd1ba8bac50d2e24a2ed7 || >=030a07e441296c372f946cd4065b5d831d8dc40c <9d81885d97cba7796d1f8edc88f2499c8296f5b9 || >=030a07e441296c372f946cd4065b5d831d8dc40c <e4637ce34607f1733a34a57294966d26b263e626 | 5538daf2a5cc80ac3f3e913c0db045d92d995d40, a441a8e52148c91c2f2a91f42e3b9bc961a13a4b, 2dae0e3a59e31f78222279d544b98e747cd1fbff, 1d4add2b832b56f81bb0eab065ec35c610343018, de6d252f115be887a701c09a05cdb076f3a590c9, 9392a2c346762ffee8edd1ba8bac50d2e24a2ed7, 9d81885d97cba7796d1f8edc88f2499c8296f5b9, e4637ce34607f1733a34a57294966d26b263e626 |
| Linux/Linuxgeneric | 2.6.28 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.