CVE-2026-46018

ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES

MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.18 % · percentile 8 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES parse_uac2_sample_rate_range() caps the number of enumerated rates at MAX_NR_RATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional triplets continues parsing the remaining triplets and repeatedly prints "invalid uac2 rates" while probe still holds register_mutex. Stop the whole parse once the cap is reached and return the number of rates collected so far.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 4fa0e81b83503900be277e6273a79651b375e288 < 5436bc1b07d4656f99412dc72871d250d7d55205 ; affected 4fa0e81b83503900be277e6273a79651b375e288 < 0da05fedf5e1966b7e7d389866cb86fcf09f4b32 ; affected 4fa0e81b83503900be277e6273a79651b375e288 < f14bd323eec4b4f0ef662520ec852e593ece1d4c ; affected 4fa0e81b83503900be277e6273a79651b375e288 < ab5ba9fd138758ddc50222264ff246b31e397abf ; affected 4fa0e81b83503900be277e6273a79651b375e288 < ba036305323814ec1f8655313b2fa6a0f7048716 ; affected 4fa0e81b83503900be277e6273a79651b375e288 < 4d7893a137eadb6163ea4298bf67d74b811d76ef
Linux · Linuxaffected 3.3 ; unaffected 0 < 3.3 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD