Vulnerability-Lookup

GHSA-XX6P-PXPQ-H557

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-24 15:32

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31645"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:43Z",
    "severity": null
  },
  "details": "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": "GHSA-xx6p-pxpq-h557",
  "modified": "2026-04-24T15:32:36Z",
  "published": "2026-04-24T15:32:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31645"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/076344a6ad9d1308faaed1402fdcfdda68b604ab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/22e1ee9f22b5c3bb702bb6d4167d770002a85b2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4941e234cfd67ac911fb259642b453f9f76aac41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/73e940c4249dc5ec6422d1fae535d192fb125955"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-04-24 14:44 – Updated: 2026-04-24 14:44

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 ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/73e940c4249dc5ec6…
	https://git.kernel.org/stable/c/22e1ee9f22b5c3bb7…
	https://git.kernel.org/stable/c/4941e234cfd67ac91…
	https://git.kernel.org/stable/c/076344a6ad9d1308f…

Impacted products

Vendor

Product

Version

Linux

Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 73e940c4249dc5ec6422d1fae535d192fb125955 (git)
Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 22e1ee9f22b5c3bb702bb6d4167d770002a85b2b (git)
Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 4941e234cfd67ac911fb259642b453f9f76aac41 (git)
Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 076344a6ad9d1308faaed1402fdcfdda68b604ab (git)

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)

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{
  "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"
            },
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              "status": "affected",
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              "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",
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                },
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                }
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              "operator": "OR"
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        {
          "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": "2026-04-24T14:44:58.868Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/076344a6ad9d1308faaed1402fdcfdda68b604ab"
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      "title": "net: lan966x: fix page pool leak in error paths",
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  },
  "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": "2026-04-24T14:44:58.868Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-XX6P-PXPQ-H557

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

Tags

Sightings

Nomenclature