Vulnerability-Lookup

GHSA-FW3G-8X7H-CVJ8

Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31

Details

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

signal: avoid shared siginfo namespace rewrites

send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next.

Copy the siginfo before changing it.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93222"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-24T16:17:17Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsignal: avoid shared siginfo namespace rewrites\n\nsend_signal_locked() rewrites sender ids for the target namespace.  Group\nsends reuse the same siginfo, so one recipient can affect the next.\n\nCopy the siginfo before changing it.",
  "id": "GHSA-fw3g-8x7h-cvj8",
  "modified": "2026-09-24T18:31:23Z",
  "published": "2026-09-24T18:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93222"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-93222 (GCVE-0-2026-93222)

Vulnerability from cvelistv5 – Published: 2026-09-24 15:21 – Updated: 2026-09-24 15:21

Title

signal: avoid shared siginfo namespace rewrites

Summary

In the Linux kernel, the following vulnerability has been resolved: signal: avoid shared siginfo namespace rewrites send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next. Copy the siginfo before changing it.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e015d1ac6b43a23c5…
https://git.kernel.org/stable/c/4ee7c4e4719a82505…
https://git.kernel.org/stable/c/148b0dae2a1755beb…
https://git.kernel.org/stable/c/6b1de022304ef8528…
https://git.kernel.org/stable/c/03c8761e75d161990…
https://git.kernel.org/stable/c/a246da20c8e4ae431…
https://git.kernel.org/stable/c/b655c2040ce836afa…
https://git.kernel.org/stable/c/d19cdc167e6967145…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7a0cf094944e2540758b7f957eb6846d5126f535 , < e015d1ac6b43a23c52c5163299414ae77d7d4ae0 (git) Affected: 7a0cf094944e2540758b7f957eb6846d5126f535 , < 4ee7c4e4719a825052f42f02ec159b5b42b68fbc (git) Affected: 7a0cf094944e2540758b7f957eb6846d5126f535 , < 148b0dae2a1755beb873a2aab51fb191414f068c (git) Affected: 7a0cf094944e2540758b7f957eb6846d5126f535 , < 6b1de022304ef85284c5933a5fb8492f6f54efc9 (git) Affected: 7a0cf094944e2540758b7f957eb6846d5126f535 , < 03c8761e75d1619906bb503686f9cc1dfc6a67f4 (git) Affected: 7a0cf094944e2540758b7f957eb6846d5126f535 , < a246da20c8e4ae4319511c698b9f26ad0ad1769f (git) Affected: 7a0cf094944e2540758b7f957eb6846d5126f535 , < b655c2040ce836afad5643842543567b31f8c11d (git) Affected: 7a0cf094944e2540758b7f957eb6846d5126f535 , < d19cdc167e696714509e87d3f7ae765b6e164589 (git) Affected: e897dd22800f02bd48aefb1511fff0b2ce96e94c (git) Affected: 2f0e9eed11ca778d0ec5507a739c28472fd4ca20 (git) Affected: 5.1.20 , < 5.2 (semver) Affected: 5.2.3 , < 5.3 (semver)
Linux	Linux	Affected: 5.3 Unaffected: 0 , < 5.3 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.109 , ≤ 6.12.* (semver) Unaffected: 6.18.50 , ≤ 6.18.* (semver) Unaffected: 7.2.4 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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JSON

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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.

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.

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GHSA-FW3G-8X7H-CVJ8

CVE-2026-93222 (GCVE-0-2026-93222)

Tags

Sightings

Nomenclature

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