Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96488.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-96488
Upstream
Published
2026-08-15T13:17:54Z
Modified
2026-08-29T05:27:27Z
Summary
CVE-2026-74497 affecting package kernel 6.6.150.1-1
Details

In the Linux kernel, the following vulnerability has been resolved:

ALSA: usb-audio: Clamp frame size in implicit-feedback mode

sndusbhandlesyncurb() scales received sync packet sizes by the sender's stride and stores the result directly in outpacket->packetsize[i]. If a connected USB device sends an oversized sync packet, this frame count can exceed ep->maxframesize.

The un-clamped frame count then propagates to the playback endpoint queue, potentially driving packet transfers beyond the endpoint's hardware frame limits.

Cap the calculated frame count against ep->maxframesize in sndusbhandlesyncurb() to prevent oversized packets from entering the playback queue.

References

Affected packages

Azure Linux:3 / kernel

Package

Name
kernel
Purl
pkg:rpm/azure-linux/kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
6.6.150.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96488.json"