net: lan966x: fix page pool leak in error paths

{
  "id": "b2b0fb979d7097ab79a122d023d74093db05122f039ae8574e313563c434db97",
  "url": "https://osv.dev/vulnerability/CVE-2026-31645",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: lan966x: fix page pool leak in error paths",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: lan966x: fix page pool leak in error paths lan966x_fdma_rx_alloc() creates a page pool but does not destroy it if the subsequent fdma_alloc_coherent() call fails, leaking the pool. Similarly, lan966x_fdma_init() frees the coherent DMA memory when lan966x_fdma_tx_alloc() fails but does not destroy the page pool that was successfully created by lan966x_fdma_rx_alloc(), leaking it. Add the missing page_pool_destroy() calls in both error paths.",
    "evidence": "osv:CVE-2026-31645",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.82",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.23",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.19.13",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-31645",
      "aliases": [
        "CVE-2026-31645"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "11871aba19748b3387e83a2db6360aa7119e9a1a"
                },
                {
                  "fixed": "a229a4dc87302fa131f3394b09b0efd8c255a5ac"
                },
                {
                  "fixed": "73e940c4249dc5ec6422d1fae535d192fb125955"
                },
                {
                  "fixed": "22e1ee9f22b5c3bb702bb6d4167d770002a85b2b"
                },
                {
                  "fixed": "4941e234cfd67ac911fb259642b453f9f76aac41"
                },
                {
                  "fixed": "076344a6ad9d1308faaed1402fdcfdda68b604ab"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31645.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.160"
                }
              ]
            },
            {
              "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"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31645.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.610224885Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/076344a6ad9d1308faaed1402fdcfdda68b604ab",
        "https://git.kernel.org/stable/c/22e1ee9f22b5c3bb702bb6d4167d770002a85b2b",
        "https://git.kernel.org/stable/c/4941e234cfd67ac911fb259642b453f9f76aac41",
        "https://git.kernel.org/stable/c/73e940c4249dc5ec6422d1fae535d192fb125955",
        "https://git.kernel.org/stable/c/a229a4dc87302fa131f3394b09b0efd8c255a5ac",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31645.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31645",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31645.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31645",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 497759,
  "published_at": "2026-04-24T14:44:58.868+00:00"
}