In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans The USB MIDI 2.0 endpoint parser has the same descriptor walking pattern as the legacy MIDI parser. It validates bLength against bNumGrpTrmBlock before reading baAssoGrpTrmBlkID[], but not against the remaining bytes in the endpoint-extra scan. A malformed device can therefore make later baAssoGrpTrmBlkID[] reads consume bytes past the walked descriptor. Reject zero-length and overlong descriptors while walking endpoint extras.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

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Vendors Products
References
Link Providers
https://git.kernel.org/stable/c/17e76b19de1aff5ff4de64d269290bd1b07a01d3 cve-icon
https://git.kernel.org/stable/c/918be519c7876329e1b6e2ea1c59f0b75e792dca cve-icon
https://git.kernel.org/stable/c/a310b4bebda5e4a1b26520c0cc5145ccd6d617e2 cve-icon
https://git.kernel.org/stable/c/f9c184a83574549a36ea69b755f650e57d164c78 cve-icon
https://git.kernel.org/stable/c/fafc97bd01e4c737eaeafadfdadb1af4bbfa7307 cve-icon
History

Wed, 24 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-126

Wed, 24 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans The USB MIDI 2.0 endpoint parser has the same descriptor walking pattern as the legacy MIDI parser. It validates bLength against bNumGrpTrmBlock before reading baAssoGrpTrmBlkID[], but not against the remaining bytes in the endpoint-extra scan. A malformed device can therefore make later baAssoGrpTrmBlkID[] reads consume bytes past the walked descriptor. Reject zero-length and overlong descriptors while walking endpoint extras.
Title ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-24T16:28:44.345Z

Reserved: 2026-06-09T07:44:35.374Z

Link: CVE-2026-52964

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-06-24T20:30:04Z