Vulnerability-Lookup

FKIE_CVE-2026-31646

Vulnerability from fkie_nvd - Published: 2026-04-24 15:16 - Updated: 2026-04-27 20:19

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() page_pool_create() can return an ERR_PTR on failure. The return value is used unconditionally in the loop that follows, passing the error pointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(), which dereferences it, causing a kernel oops. Add an IS_ERR check after page_pool_create() to return early on failure.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/305832c53551cfbe6e5b81ca7ee765e60f4fe8e9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3fd0da4fd8851a7e62d009b7db6c4a05b092bc19	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7caf90d9ab97951a58d1de85ab7e7d7cca7a4513	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b5dcb41ba891b55157006cac79825c78a32b409e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e63265f188ea39dcf5f546770650027528f3bd0f	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.2
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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",
  "lastModified": "2026-04-27T20:19:01.043",
  "metrics": {
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        "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": "2026-04-24T15:16:43.967",
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    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-31646 (GCVE-0-2026-31646)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:44 – Updated: 2026-05-11 22:12

Title

net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()

Summary

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/e63265f188ea39dcf…
https://git.kernel.org/stable/c/305832c53551cfbe6…
https://git.kernel.org/stable/c/b5dcb41ba891b5515…
https://git.kernel.org/stable/c/7caf90d9ab97951a5…
https://git.kernel.org/stable/c/3fd0da4fd8851a7e6…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < e63265f188ea39dcf5f546770650027528f3bd0f (git) Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 305832c53551cfbe6e5b81ca7ee765e60f4fe8e9 (git) Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < b5dcb41ba891b55157006cac79825c78a32b409e (git) Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 7caf90d9ab97951a58d1de85ab7e7d7cca7a4513 (git) Affected: 11871aba19748b3387e83a2db6360aa7119e9a1a , < 3fd0da4fd8851a7e62d009b7db6c4a05b092bc19 (git)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.135 , ≤ 6.6.* (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)

Show details on NVD website

JSON

To clipboard

{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"
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}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-31646

CVE-2026-31646 (GCVE-0-2026-31646)

Tags

Sightings

Nomenclature