Vulnerability-Lookup

GHSA-CMF4-RM73-RFHX

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-10-15 03:36

Details

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

mptcp: pm: ADD_ADDR rtx: fix potential data-race

This mptcp_pm_add_timer() helper is executed as a timer callback in softirq context. To avoid any data races, the socket lock needs to be held with bh_lock_sock().

If the socket is in use, retry again soon after, similar to what is done with the keepalive timer.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46137"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:29Z",
    "severity": "CRITICAL"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: ADD_ADDR rtx: fix potential data-race\n\nThis mptcp_pm_add_timer() helper is executed as a timer callback in\nsoftirq context. To avoid any data races, the socket lock needs to be\nheld with bh_lock_sock().\n\nIf the socket is in use, retry again soon after, similar to what is done\nwith the keepalive timer.",
  "id": "GHSA-cmf4-rm73-rfhx",
  "modified": "2026-10-15T03:36:03Z",
  "published": "2026-05-28T12:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46137"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
    },
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    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23079e0b7742ec114d3507c3e3aad01b7b69e4af"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ad56e434199ca24a812bb353667aa1c3860f513"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cd6e0ad79d2615264f63929f8b457ad97ae550d"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3"
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      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-46137 (GCVE-0-2026-46137)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:35 – Updated: 2026-10-19 19:36

Title

mptcp: pm: ADD_ADDR rtx: fix potential data-race

Summary

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential data-race This mptcp_pm_add_timer() helper is executed as a timer callback in softirq context. To avoid any data races, the socket lock needs to be held with bh_lock_sock(). If the socket is in use, retry again soon after, similar to what is done with the keepalive timer.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:20 UTC

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6847 records in the last 180 days details

References

9 references

URL	Tags
https://git.kernel.org/stable/c/d9b272a85fe6b8f99…
https://git.kernel.org/stable/c/23079e0b7742ec114…
https://git.kernel.org/stable/c/b35605e1f1e877038…
https://git.kernel.org/stable/c/013dcdc1961543b9a…
https://git.kernel.org/stable/c/6e4710d7d8782cb61…
https://git.kernel.org/stable/c/2ad56e434199ca24a…
https://git.kernel.org/stable/c/cc3c0399361efaaf7…
https://git.kernel.org/stable/c/5cd6e0ad79d261526…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

3 products

Vendor	Product	Version
Linux	Linux	Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < d9b272a85fe6b8f993e37915311e4038c814a533 (git) Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 23079e0b7742ec114d3507c3e3aad01b7b69e4af (git) Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < b35605e1f1e877038c8c9d499babbc891cdd234f (git) Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 013dcdc1961543b9a3433466bc8c79a2f4ca75b5 (git) Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3 (git) Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 2ad56e434199ca24a812bb353667aa1c3860f513 (git) Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < cc3c0399361efaaf7ae64262eb3f70829b1189c6 (git) Affected: 00cfd77b9063dcdf3628a7087faba60de85a9cc8 , < 5cd6e0ad79d2615264f63929f8b457ad97ae550d (git)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "affected": [
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            "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
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                "version": "0",
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        "providerMetadata": {
          "dateUpdated": "2026-10-15T01:20:46.817Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
          }
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                  },
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                    "Technical Impact": "total"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T15:20:17.146601Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-362",
                "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
                "lang": "en",
                "type": "CWE"
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        "providerMetadata": {
          "dateUpdated": "2026-10-19T19:36:51.963Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.210",
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            },
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              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
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              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.18.30",
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            },
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              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

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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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