CVE-2026-46127 (GCVE-0-2026-46127)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:35 – Updated: 2026-06-14 17:56
VLAI
Title
RDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma_copy_pd_uresp()
Summary
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.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: fe2caefcdf5869f308c102e3d64d40683bfad711 , < b610f33c5523fe26f6dd897667fff9c7a1de5905 (git)
Affected: fe2caefcdf5869f308c102e3d64d40683bfad711 , < 443c991fbc954cc9363e963c09f404b9f281f3a2 (git)
Affected: fe2caefcdf5869f308c102e3d64d40683bfad711 , < 27b6eb1f27fda9bdd5cae028e396758cdf525845 (git)
Affected: fe2caefcdf5869f308c102e3d64d40683bfad711 , < e01a957561f663d3b68d2fd233a4502e3367efcd (git)
Affected: fe2caefcdf5869f308c102e3d64d40683bfad711 , < 75fc130664ae324e7b2f9ad3630e0f175e9ca6c8 (git)
Affected: fe2caefcdf5869f308c102e3d64d40683bfad711 , < 8832626a483439e207734e027afff322ccdf726e (git)
Affected: fe2caefcdf5869f308c102e3d64d40683bfad711 , < ec44c00a4fe1327efa35083f98b39c01cb535a51 (git)
Affected: fe2caefcdf5869f308c102e3d64d40683bfad711 , < 34fbf48cf3b410d2a6e8c586fa952a36331ca5ba (git)
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Linux Linux Affected: 3.5
Unaffected: 0 , < 3.5 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.88 , ≤ 6.12.* (semver)
Unaffected: 6.18.30 , ≤ 6.18.* (semver)
Unaffected: 7.0.7 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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              "Patch"
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            "url": "https://git.kernel.org/stable/c/ec44c00a4fe1327efa35083f98b39c01cb535a51"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Undergoing Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-27T16:20:50+00:00",
      "cve": "CVE-2026-46127",
      "id": "CVE-2026-46127",
      "initial_release_date": "2026-05-28T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "232",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: RDMA/ocrdma: Don\u0027t NULL deref uctx on errors in ocrdma_copy_pd_uresp()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46127.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-21T16:53:07Z",
      "cve": "CVE-2026-46127",
      "id": "CVE-2026-46127",
      "initial_release_date": "2026-05-29T01:16:43Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "740",
      "product_status:known_not_affected": "4",
      "product_status:recommended": "232",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46127",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46127.json",
      "version": "11"
    }
  }
}



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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.

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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.


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