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CVE-2026-52964

Full vulnerability record from the local CVENow database.

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.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-06-24 17:17:06.837000
Last modified
2026-11-06 17:17:58.397000
View original CVE JSON 
{
  "id": "CVE-2026-52964",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-06-24T17:17:06.837",
  "lastModified": "2026-11-06T17:17:58.397",
  "vulnStatus": "Analyzed",
  "cveTags": [],
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans\n\nThe USB MIDI 2.0 endpoint parser has the same descriptor walking\npattern as the legacy MIDI parser. It validates bLength against\nbNumGrpTrmBlock before reading baAssoGrpTrmBlkID[], but not against the\nremaining bytes in the endpoint-extra scan.\n\nA malformed device can therefore make later baAssoGrpTrmBlkID[] reads\nconsume bytes past the walked descriptor.\n\nReject zero-length and overlong descriptors while walking endpoint\nextras."
    }
  ],
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              "versionType": "original_commit_for_fix",
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          "scope": "UNCHANGED",
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