CVE-2026-93808
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ALSA: usb-audio: caiaq: validate EP1 reply lengths
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 523f1dce37434a9a6623bf46e7893e2b4b10ac3c | affected | git | 91acd231f219452fa58285239f83945accad9513 | Unavailable | None listed |
| 523f1dce37434a9a6623bf46e7893e2b4b10ac3c | affected | git | 7cc6b3745a0cea697c8d0684b3094f220281a08d | Unavailable | None listed |
| 523f1dce37434a9a6623bf46e7893e2b4b10ac3c | affected | git | add9328c91c195c494cd68a21b19e5e47a20d784 | Unavailable | None listed |
| 523f1dce37434a9a6623bf46e7893e2b4b10ac3c | affected | git | 319393151367e6626affedcdd4f7b7b0286f4246 | Unavailable | None listed |
| 523f1dce37434a9a6623bf46e7893e2b4b10ac3c | affected | git | af8a172c4f71ac30d625f2966d2389a7fa872819 | Unavailable | None listed |
| 523f1dce37434a9a6623bf46e7893e2b4b10ac3c | affected | git | 74f3c639f64fa5da4e1613149798b5089bce2807 | Unavailable | None listed |
| 523f1dce37434a9a6623bf46e7893e2b4b10ac3c | affected | git | aba30af07d4fe499b50209801eba9da8a815522f | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.22 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.22 | Unavailable | None listed |
| 5.10.271 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.222 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.111 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.53 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |