CVE-2026-31645 (GCVE-0-2026-31645)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:44 – Updated: 2026-05-11 22:12
VLAI
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 73e940c4249dc5ec6422d1fae535d192fb125955 (git)
Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 22e1ee9f22b5c3bb702bb6d4167d770002a85b2b (git)
Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 4941e234cfd67ac911fb259642b453f9f76aac41 (git)
Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 076344a6ad9d1308faaed1402fdcfdda68b604ab (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.12.82 , ≤ 6.12.* (semver)
Unaffected: 6.18.23 , ≤ 6.18.* (semver)
Unaffected: 6.19.13 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "73e940c4249dc5ec6422d1fae535d192fb125955",
              "status": "affected",
              "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
              "versionType": "git"
            },
            {
              "lessThan": "22e1ee9f22b5c3bb702bb6d4167d770002a85b2b",
              "status": "affected",
              "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
              "versionType": "git"
            },
            {
              "lessThan": "4941e234cfd67ac911fb259642b453f9f76aac41",
              "status": "affected",
              "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
              "versionType": "git"
            },
            {
              "lessThan": "076344a6ad9d1308faaed1402fdcfdda68b604ab",
              "status": "affected",
              "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.82",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.82",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.23",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.13",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan966x: fix page pool leak in error paths\n\nlan966x_fdma_rx_alloc() creates a page pool but does not destroy it if\nthe subsequent fdma_alloc_coherent() call fails, leaking the pool.\n\nSimilarly, lan966x_fdma_init() frees the coherent DMA memory when\nlan966x_fdma_tx_alloc() fails but does not destroy the page pool that\nwas successfully created by lan966x_fdma_rx_alloc(), leaking it.\n\nAdd the missing page_pool_destroy() calls in both error paths."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:12:49.302Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/73e940c4249dc5ec6422d1fae535d192fb125955"
        },
        {
          "url": "https://git.kernel.org/stable/c/22e1ee9f22b5c3bb702bb6d4167d770002a85b2b"
        },
        {
          "url": "https://git.kernel.org/stable/c/4941e234cfd67ac911fb259642b453f9f76aac41"
        },
        {
          "url": "https://git.kernel.org/stable/c/076344a6ad9d1308faaed1402fdcfdda68b604ab"
        }
      ],
      "title": "net: lan966x: fix page pool leak in error paths",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31645",
    "datePublished": "2026-04-24T14:44:58.868Z",
    "dateReserved": "2026-03-09T15:48:24.127Z",
    "dateUpdated": "2026-05-11T22:12:49.302Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-31645",
      "date": "2026-09-28",
      "epss": "0.00162",
      "percentile": "0.04669"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-23T01:47:01.000Z",
      "cve": "CVE-2026-31645",
      "id": "msrc_CVE-2026-31645",
      "initial_release_date": "2026-04-26T01:04:53.000Z",
      "product_status:known_affected": "11",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "net: lan966x: fix page pool leak in error paths",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-31645.json",
      "version": "12"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "73e940c4249dc5ec6422d1fae535d192fb125955",
                    "status": "affected",
                    "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "22e1ee9f22b5c3bb702bb6d4167d770002a85b2b",
                    "status": "affected",
                    "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4941e234cfd67ac911fb259642b453f9f76aac41",
                    "status": "affected",
                    "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "076344a6ad9d1308faaed1402fdcfdda68b604ab",
                    "status": "affected",
                    "version": "11871aba19748b3387e83a2db6360aa7119e9a1a",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.2"
                  },
                  {
                    "lessThan": "6.2",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.82",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.23",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.19.*",
                    "status": "unaffected",
                    "version": "6.19.13",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.0",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "91AC109E-E13B-4314-992F-122FB084974B",
                    "versionEndExcluding": "6.12.82",
                    "versionStartIncluding": "6.2.1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E9E09FDD-9EE3-4A56-92E2-2B30AFD0072F",
                    "versionEndExcluding": "6.18.23",
                    "versionStartIncluding": "6.13",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1490EF9B-9080-481C-8D22-1306AAE664E4",
                    "versionEndExcluding": "6.19.13",
                    "versionStartIncluding": "6.19",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.2:-:*:*:*:*:*:*",
                    "matchCriteriaId": "3ADCCCEE-143A-4B48-9B2A-0CB97BD385DE",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*",
                    "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*",
                    "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan966x: fix page pool leak in error paths\n\nlan966x_fdma_rx_alloc() creates a page pool but does not destroy it if\nthe subsequent fdma_alloc_coherent() call fails, leaking the pool.\n\nSimilarly, lan966x_fdma_init() frees the coherent DMA memory when\nlan966x_fdma_tx_alloc() fails but does not destroy the page pool that\nwas successfully created by lan966x_fdma_rx_alloc(), leaking it.\n\nAdd the missing page_pool_destroy() calls in both error paths."
          }
        ],
        "id": "CVE-2026-31645",
        "lastModified": "2026-06-17T10:34:09.300",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2026-04-24T15:16:43.873",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/076344a6ad9d1308faaed1402fdcfdda68b604ab"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/22e1ee9f22b5c3bb702bb6d4167d770002a85b2b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4941e234cfd67ac911fb259642b453f9f76aac41"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/73e940c4249dc5ec6422d1fae535d192fb125955"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T06:23:47+00:00",
      "cve": "CVE-2026-31645",
      "id": "CVE-2026-31645",
      "initial_release_date": "2026-04-24T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: lan966x: fix page pool leak in error paths",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31645.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-11T01:29:57Z",
      "cve": "CVE-2026-31645",
      "id": "CVE-2026-31645",
      "initial_release_date": "2026-04-25T01:37:10Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "502",
      "product_status:known_not_affected": "284",
      "product_status:recommended": "172",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-31645",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-31645.json",
      "version": "7"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.