{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "92c66ee829b99a860a90f62ef16df3e42f92edac"
            },
            {
              "fixed": "9e3f18883a98420a3b8873c6f894bc57e9b98e41"
            },
            {
              "fixed": "0d470d36551058e3f728574308b815a80bca710f"
            },
            {
              "fixed": "e7537735028c3ad4b0bfc02ff8fa2a1a28aa04fe"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.15.0"
            },
            {
              "fixed": "6.18.34"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64101.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfwctl: pds: Validate RPC input size before parsing\n\nThe fwctl core allocates the device-specific RPC input buffer with\nfwctl_rpc.in_len and passes that buffer to the driver callback.\n\npdsfc_fw_rpc() casts the buffer to struct fwctl_rpc_pds and then calls\npdsfc_validate_rpc(), which reads fields from that structure before\nchecking that the input buffer is large enough to contain it. A short\nin_len can make pds_fwctl read beyond the allocation.\n\nReject pds RPC buffers that are smaller than struct fwctl_rpc_pds before\nparsing any pds-specific fields.",
  "id": "CVE-2026-64101",
  "modified": "2026-08-13T03:52:05.938340051Z",
  "published": "2026-07-19T15:40:06.185Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d470d36551058e3f728574308b815a80bca710f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e3f18883a98420a3b8873c6f894bc57e9b98e41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7537735028c3ad4b0bfc02ff8fa2a1a28aa04fe"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64101.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64101"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "fwctl: pds: Validate RPC input size before parsing"
}