CVE-2026-90080 (GCVE-0-2026-90080)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:05 – Updated: 2026-09-17 16:05
VLAI
Title
octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup
Summary
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup af_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is allocated during PF/VF probe. Representors and other non-AF_XDP paths leave the pointer NULL, but several call sites used test_bit() on it unconditionally. Switching to devlink eswitch mode creates representors and runs otx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses when dereferencing the NULL bitmap. Add NULL checks before every af_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init paths.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: efabce29015189cb5cd8066cf29eb1d754de6c3c , < b003d5b4e46ca5033859db601e12d36da24d0e40 (git)
Affected: efabce29015189cb5cd8066cf29eb1d754de6c3c , < 7e33c6bd049b532d2ec4916895ef07e538bed905 (git)
Affected: efabce29015189cb5cd8066cf29eb1d754de6c3c , < b09a0503c755b6609fad59a84cc7f05b6843a03c (git)
Affected: 9bd7273cf1f9c5761d696cca821d25602e8f7009 (git)
Affected: 6.14.9 , < 6.15 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (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/marvell/octeontx2/nic/otx2_common.c",
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c",
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b003d5b4e46ca5033859db601e12d36da24d0e40",
              "status": "affected",
              "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
              "versionType": "git"
            },
            {
              "lessThan": "7e33c6bd049b532d2ec4916895ef07e538bed905",
              "status": "affected",
              "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
              "versionType": "git"
            },
            {
              "lessThan": "b09a0503c755b6609fad59a84cc7f05b6843a03c",
              "status": "affected",
              "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9bd7273cf1f9c5761d696cca821d25602e8f7009",
              "versionType": "git"
            },
            {
              "lessThan": "6.15",
              "status": "affected",
              "version": "6.14.9",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c",
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c",
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.14.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup\n\naf_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is\nallocated during PF/VF probe. Representors and other non-AF_XDP paths\nleave the pointer NULL, but several call sites used test_bit() on it\nunconditionally.\n\nSwitching to devlink eswitch mode creates representors and runs\notx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses\nwhen dereferencing the NULL bitmap. Add NULL checks before every\naf_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init\npaths."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:05:58.199Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b003d5b4e46ca5033859db601e12d36da24d0e40"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e33c6bd049b532d2ec4916895ef07e538bed905"
        },
        {
          "url": "https://git.kernel.org/stable/c/b09a0503c755b6609fad59a84cc7f05b6843a03c"
        }
      ],
      "title": "octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90080",
    "datePublished": "2026-09-17T16:05:58.199Z",
    "dateReserved": "2026-09-11T19:38:34.785Z",
    "dateUpdated": "2026-09-17T16:05:58.199Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-90080",
      "date": "2026-09-25",
      "epss": "0.00206",
      "percentile": "0.09522"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c",
                  "drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c",
                  "drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "b003d5b4e46ca5033859db601e12d36da24d0e40",
                    "status": "affected",
                    "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "7e33c6bd049b532d2ec4916895ef07e538bed905",
                    "status": "affected",
                    "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "b09a0503c755b6609fad59a84cc7f05b6843a03c",
                    "status": "affected",
                    "version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "9bd7273cf1f9c5761d696cca821d25602e8f7009",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6.15",
                    "status": "affected",
                    "version": "6.14.9",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c",
                  "drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c",
                  "drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.15"
                  },
                  {
                    "lessThan": "6.15",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.52",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.6",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3-rc1",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup\n\naf_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is\nallocated during PF/VF probe. Representors and other non-AF_XDP paths\nleave the pointer NULL, but several call sites used test_bit() on it\nunconditionally.\n\nSwitching to devlink eswitch mode creates representors and runs\notx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses\nwhen dereferencing the NULL bitmap. Add NULL checks before every\naf_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init\npaths."
          }
        ],
        "id": "CVE-2026-90080",
        "lastModified": "2026-09-17T17:16:57.317",
        "metrics": {},
        "published": "2026-09-17T17:16:57.317",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/7e33c6bd049b532d2ec4916895ef07e538bed905"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b003d5b4e46ca5033859db601e12d36da24d0e40"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b09a0503c755b6609fad59a84cc7f05b6843a03c"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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.