Vulnerability-Lookup

GHSA-WQ95-FRFX-7W32

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32

Details

In the Linux kernel, the following vulnerability has been resolved:

RDMA/irdma: Add refcounting to user ring MRs

Prevent userspace from deregistering the MRs that back QP/CQ/SRQ rings by bumping the MR's refcount upon association.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93154"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:18:10Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Add refcounting to user ring MRs\n\nPrevent userspace from deregistering the MRs that back QP/CQ/SRQ rings\nby bumping the MR\u0027s refcount upon association.",
  "id": "GHSA-wq95-frfx-7w32",
  "modified": "2026-09-17T18:32:12Z",
  "published": "2026-09-17T18:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93154"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07974c267f603a76aead348bca97deee95efdcc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f67d8a08f60c9217df6d40da56422d2049f5e334"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-93154 (GCVE-0-2026-93154)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:11 – Updated: 2026-09-17 16:11

Title

RDMA/irdma: Add refcounting to user ring MRs

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Add refcounting to user ring MRs Prevent userspace from deregistering the MRs that back QP/CQ/SRQ rings by bumping the MR's refcount upon association.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/07974c267f603a76a…
https://git.kernel.org/stable/c/a6c0e693a7c881bfa…
https://git.kernel.org/stable/c/f67d8a08f60c9217d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b48c24c2d710cf34810c555dcef883a3d35a9c08 , < 07974c267f603a76aead348bca97deee95efdcc9 (git) Affected: b48c24c2d710cf34810c555dcef883a3d35a9c08 , < a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b (git) Affected: b48c24c2d710cf34810c555dcef883a3d35a9c08 , < f67d8a08f60c9217df6d40da56422d2049f5e334 (git)
Linux	Linux	Affected: 5.14 Unaffected: 0 , < 5.14 (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/irdma/utils.c",
            "drivers/infiniband/hw/irdma/verbs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "07974c267f603a76aead348bca97deee95efdcc9",
              "status": "affected",
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "versionType": "git"
            },
            {
              "lessThan": "a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b",
              "status": "affected",
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "versionType": "git"
            },
            {
              "lessThan": "f67d8a08f60c9217df6d40da56422d2049f5e334",
              "status": "affected",
              "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
              "versionType": "git"
            }
          ]
        },
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          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/irdma/utils.c",
            "drivers/infiniband/hw/irdma/verbs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "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": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
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                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Add refcounting to user ring MRs\n\nPrevent userspace from deregistering the MRs that back QP/CQ/SRQ rings\nby bumping the MR\u0027s refcount upon association."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:11:50.107Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b"
        },
        {
          "url": "https://git.kernel.org/stable/c/f67d8a08f60c9217df6d40da56422d2049f5e334"
        }
      ],
      "title": "RDMA/irdma: Add refcounting to user ring MRs",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93154",
    "datePublished": "2026-09-17T16:11:50.107Z",
    "dateReserved": "2026-09-17T16:02:15.089Z",
    "dateUpdated": "2026-09-17T16:11:50.107Z",
    "state": "PUBLISHED"
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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