{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5c6cd7021a05a02fcf37f360592d7c18d4d807fb"
            },
            {
              "fixed": "e2f1260a056eb3215c13c48c5378f3e4112dc3af"
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            {
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            },
            {
              "fixed": "728ab0c72e49ca27185067984cd565425eb69b2e"
            },
            {
              "fixed": "3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e"
            },
            {
              "fixed": "a0226560540c16717efcceaf15c862cf115b01d3"
            },
            {
              "fixed": "09141583bd97f4bbd7358e29fd138fe798467cdb"
            },
            {
              "fixed": "c59159ce10e75b568cd0d4b29efcb0fb0ddecc94"
            },
            {
              "fixed": "d6854daa67be623860f4e1873fd3d3c275aba4ed"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "9e0c71f2f633b0442661966228827d1a33df485f"
            },
            {
              "last_affected": "0868bc5654c07628c421547f0821650a8c2cb8f3"
            },
            {
              "last_affected": "78483c1c7741ffa72991d93d19a75bfdcc2cbf57"
            },
            {
              "last_affected": "65d95462001c6ccd9bc9499c1fc9a90eca9de496"
            },
            {
              "last_affected": "ca767cf0152d18fc299cde85b18d1f46ac21e1ba"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.4.238"
            },
            {
              "fixed": "4.5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.9.238"
            },
            {
              "fixed": "4.10"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.14.200"
            },
            {
              "fixed": "4.15"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
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              "introduced": "4.19.149"
            },
            {
              "fixed": "4.20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
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              "introduced": "5.4.69"
            },
            {
              "fixed": "5.5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.7.0"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.141"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.91"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.33"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52963.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Bound MIDI endpoint descriptor scans\n\nsnd_usbmidi_get_ms_info() validates the internal MIDIStreaming endpoint\ndescriptor size before using baAssocJackID[], but the descriptor walker can\nstill return a class-specific endpoint descriptor whose bLength exceeds the\nremaining bytes in the endpoint-extra scan.\n\nThat leaves later flexible-array reads bounded by bLength, but not by the\nremaining bytes in the endpoint-extra scan.\n\nStop walking when bLength is zero or\nextends past the remaining endpoint-extra scan.",
  "id": "CVE-2026-52963",
  "modified": "2026-07-08T05:36:04.391387177Z",
  "published": "2026-06-24T16:28:43.593Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09141583bd97f4bbd7358e29fd138fe798467cdb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/728ab0c72e49ca27185067984cd565425eb69b2e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a0226560540c16717efcceaf15c862cf115b01d3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c59159ce10e75b568cd0d4b29efcb0fb0ddecc94"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c65b137d351e21cbc5630e73ef0eb1e1d75f5b20"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6854daa67be623860f4e1873fd3d3c275aba4ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2f1260a056eb3215c13c48c5378f3e4112dc3af"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52963.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52963"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "ALSA: usb-audio: Bound MIDI endpoint descriptor scans"
}