Riskcovery

CVE-2026-52964

ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans

State
Published
Severity
Not scored
Published
Jun 24, 2026
Updated
Jun 24, 2026
Reserved
Jun 9, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • ff49d1df79aef7580fe3ac99d17c3f886655d080 to before fafc97bd01e4c737eaeafadfdadb1af4bbfa7307Affected
  • ff49d1df79aef7580fe3ac99d17c3f886655d080 to before a310b4bebda5e4a1b26520c0cc5145ccd6d617e2Affected
  • ff49d1df79aef7580fe3ac99d17c3f886655d080 to before f9c184a83574549a36ea69b755f650e57d164c78Affected
  • ff49d1df79aef7580fe3ac99d17c3f886655d080 to before 17e76b19de1aff5ff4de64d269290bd1b07a01d3Affected
  • ff49d1df79aef7580fe3ac99d17c3f886655d080 to before 918be519c7876329e1b6e2ea1c59f0b75e792dcaAffected
LinuxLinux
  • 6.5Affected
  • before 6.5Not affected
  • 6.6.141 through 6.6.*Not affected
  • 6.12.91 through 6.12.*Not affected
  • 6.18.33 through 6.18.*Not affected
  • 7.0.10 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.