← Back to CVE Explorer

CVE-2026-46127

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma_copy_pd_uresp() Sashiko points out that pd->uctx isn't initialized until late in the function so all these error flow references are NULL and will crash. Use the uctx that isn't NULL.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Undergoing Analysis
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-05-28 10:16:28.250000
Last modified
2026-11-06 17:17:38.787000
View original CVE JSON
{
  "id": "CVE-2026-46127",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-05-28T10:16:28.250",
  "lastModified": "2026-11-06T17:17:38.787",
  "vulnStatus": "Undergoing Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma_copy_pd_uresp()\n\nSashiko points out that pd->uctx isn't initialized until late in the\nfunction so all these error flow references are NULL and will crash. Use\nthe uctx that isn't NULL."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/infiniband/hw/ocrdma/ocrdma_verbs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "fe2caefcdf5869f308c102e3d64d40683bfad711",
              "lessThan": "b610f33c5523fe26f6dd897667fff9c7a1de5905",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "fe2caefcdf5869f308c102e3d64d40683bfad711",
              "lessThan": "443c991fbc954cc9363e963c09f404b9f281f3a2",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "fe2caefcdf5869f308c102e3d64d40683bfad711",
              "lessThan": "27b6eb1f27fda9bdd5cae028e396758cdf525845",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "fe2caefcdf5869f308c102e3d64d40683bfad711",
              "lessThan": "e01a957561f663d3b68d2fd233a4502e3367efcd",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "fe2caefcdf5869f308c102e3d64d40683bfad711",
              "lessThan": "75fc130664ae324e7b2f9ad3630e0f175e9ca6c8",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "fe2caefcdf5869f308c102e3d64d40683bfad711",
              "lessThan": "8832626a483439e207734e027afff322ccdf726e",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "fe2caefcdf5869f308c102e3d64d40683bfad711",
              "lessThan": "ec44c00a4fe1327efa35083f98b39c01cb535a51",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "fe2caefcdf5869f308c102e3d64d40683bfad711",
              "lessThan": "34fbf48cf3b410d2a6e8c586fa952a36331ca5ba",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/infiniband/hw/ocrdma/ocrdma_verbs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "3.5",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "3.5",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.10.258",
              "lessThanOrEqual": "5.10.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.209",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.175",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.140",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.88",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.30",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.0.7",
              "lessThanOrEqual": "7.0.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.1",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-06T16:09:17.301683Z",
          "id": "CVE-2026-46127",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "3.5",
              "versionEndExcluding": "5.10.258",
              "matchCriteriaId": "87228D43-E81A-4C73-9457-94467C1D5AB5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.11",
              "versionEndExcluding": "5.15.209",
              "matchCriteriaId": "919C10A9-7951-4A74-BADD-C135A0A8D8B4"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.16",
              "versionEndExcluding": "6.1.175",
              "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.2",
              "versionEndExcluding": "6.6.140",
              "matchCriteriaId": "A1A92866-F406-43B5-B2D1-CFC274753E9D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.7",
              "versionEndExcluding": "6.12.88",
              "matchCriteriaId": "5AFBE0EC-CCDF-4207-AE92-ABF958125CA4"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.13",
              "versionEndExcluding": "6.18.30",
              "matchCriteriaId": "BF39AE08-AE6D-4410-8FBE-76F6BF5BF55B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.19",
              "versionEndExcluding": "7.0.7",
              "matchCriteriaId": "D0893CA7-9AE6-4DFE-AC75-48967D73AD8E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/27b6eb1f27fda9bdd5cae028e396758cdf525845",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/34fbf48cf3b410d2a6e8c586fa952a36331ca5ba",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/443c991fbc954cc9363e963c09f404b9f281f3a2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/75fc130664ae324e7b2f9ad3630e0f175e9ca6c8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/8832626a483439e207734e027afff322ccdf726e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/b610f33c5523fe26f6dd897667fff9c7a1de5905",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/e01a957561f663d3b68d2fd233a4502e3367efcd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/ec44c00a4fe1327efa35083f98b39c01cb535a51",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    }
  ]
}