{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3a691b28a0ca3cf4d9010c6158318159e0275d2c"
            },
            {
              "fixed": "24423e0a9251d348c3f1fb0bb0e61b879e1e976c"
            },
            {
              "fixed": "ebbffacda6733dcbcef601b5b523460f8d8b671e"
            },
            {
              "fixed": "57e4d9043afc1eaddee8f50d11def6e65415d273"
            },
            {
              "fixed": "3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478"
            },
            {
              "fixed": "31da82b9676c6b112e7c72c7529e6812b919742a"
            },
            {
              "fixed": "8e48a29813df8dd71503800b7acf69c12c035045"
            },
            {
              "fixed": "31a01b70bb90e3ef3147f308e2ea899e1d2485ca"
            },
            {
              "fixed": "29b9667982e4df2ed7744f86b1144f8bb58eb698"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64483.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: firewire: isight: bound the sample count to the packet payload\n\nisight_packet() takes the frame count from the device iso packet and\nchecks it only against the device claimed iso length.\n\n\tcount = be32_to_cpu(payload-\u003esample_count);\n\tif (likely(count \u003c= (length - 16) / 4))\n\t\tisight_samples(isight, payload-\u003esamples, count);\n\nlength is the iso header data_length. It can be up to 0xffff. So the\ngate allows a count up to about 16379. isight_samples() then copies\ncount frames out of payload-\u003esamples into the PCM DMA buffer.\n\npayload-\u003esamples holds only 2 * MAX_FRAMES_PER_PACKET values. The\ndevice multiplexes two samples per frame. A count past\nMAX_FRAMES_PER_PACKET reads past the payload. A count past the buffer\nsize writes past runtime-\u003edma_area. The smallest PCM buffer is larger\nthan MAX_FRAMES_PER_PACKET. Bounding the count to MAX_FRAMES_PER_PACKET\nkeeps both the read and the write in range.\n\nA malicious or faulty Apple iSight on the FireWire bus reaches this\nduring a normal capture.\n\nAdd the MAX_FRAMES_PER_PACKET bound to the gate.",
  "id": "CVE-2026-64483",
  "modified": "2026-07-27T03:56:36.338534125Z",
  "published": "2026-07-25T08:51:43.851Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24423e0a9251d348c3f1fb0bb0e61b879e1e976c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29b9667982e4df2ed7744f86b1144f8bb58eb698"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31a01b70bb90e3ef3147f308e2ea899e1d2485ca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31da82b9676c6b112e7c72c7529e6812b919742a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/57e4d9043afc1eaddee8f50d11def6e65415d273"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e48a29813df8dd71503800b7acf69c12c035045"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ebbffacda6733dcbcef601b5b523460f8d8b671e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64483.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64483"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "ALSA: firewire: isight: bound the sample count to the packet payload"
}