{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "11871aba19748b3387e83a2db6360aa7119e9a1a"
            },
            {
              "fixed": "e63265f188ea39dcf5f546770650027528f3bd0f"
            },
            {
              "fixed": "305832c53551cfbe6e5b81ca7ee765e60f4fe8e9"
            },
            {
              "fixed": "b5dcb41ba891b55157006cac79825c78a32b409e"
            },
            {
              "fixed": "7caf90d9ab97951a58d1de85ab7e7d7cca7a4513"
            },
            {
              "fixed": "3fd0da4fd8851a7e62d009b7db6c4a05b092bc19"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.135"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.82"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.23"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31646.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()\n\npage_pool_create() can return an ERR_PTR on failure. The return value\nis used unconditionally in the loop that follows, passing the error\npointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(),\nwhich dereferences it, causing a kernel oops.\n\nAdd an IS_ERR check after page_pool_create() to return early on failure.",
  "id": "CVE-2026-31646",
  "modified": "2026-07-08T05:38:10.008565434Z",
  "published": "2026-04-24T14:44:59.874Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/305832c53551cfbe6e5b81ca7ee765e60f4fe8e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3fd0da4fd8851a7e62d009b7db6c4a05b092bc19"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7caf90d9ab97951a58d1de85ab7e7d7cca7a4513"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5dcb41ba891b55157006cac79825c78a32b409e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e63265f188ea39dcf5f546770650027528f3bd0f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31646.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31646"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()"
}