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VULNERABILITIES

CVE-2026-74497 Details

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Clamp frame size in implicit-feedback mode snd_usb_handle_sync_urb() scales received sync packet sizes by the sender's stride and stores the result directly in out_packet->packet_size[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 snd_usb_handle_sync_urb() to prevent oversized packets from entering the playback queue.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:8.4 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/09cf3dbbb4256a43feb91d2f51f274510a9ada47 kernel.org
https://git.kernel.org/stable/c/2d39fea6d3c19a2f5811d123114d92e3d0115fd1 kernel.org
https://git.kernel.org/stable/c/2db4535d6af79276a64449201c5be5feffb31c64 kernel.org
https://git.kernel.org/stable/c/53f0aa37eb945f3c983f61d12fc35eb33debb8a9 kernel.org
https://git.kernel.org/stable/c/56ac3e7c90f6b45969c3fd07a98fad760ffd6901 kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-74497
NVD Published Date:
Aug 15, 2026
NVD Last Modified:
Aug 19, 2026
Source:
kernel.org
CVE-2026-74497 Details - Not Deferred