CVE-2026-93808
CVE CVE-2026-93808EUVD EUVD-2026-86195Published 2026-09-24T16:02:43.000ZLast changed 2026-09-25T12:43:16.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: caiaq: validate EP1 reply lengths usb_ep1_command_reply_dispatch() uses buf[0] as a command byte and then reads command-specific fixed items from the same URB buffer. Several paths use buf + 1, buf[1], buf[2], or buf + 3 without first proving that urb->actual_length contains those bytes. Add per-command length checks, use a payload length derived from the bytes after the command byte for the control-state copy, and reject short analog input payloads before the input helper reads fixed offsets from the EP1 reply.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 2.6.22; 523f1dce37434a9a6623bf46e7893e2b4b10ac3c <aba30af07d4fe499b50209801eba9da8a815522f; patch: 6.12.111; patch: 6.18.53; patch: 0; 523f1dce37434a9a6623bf46e7893e2b4b10ac3c <74f3c639f64fa5da4e1613149798b5089bce2807; patch: 7.2; 523f1dce37434a9a6623bf46e7893e2b4b10ac3c <af8a172c4f71ac30d625f2966d2389a7fa872819
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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