Vulnerability-Lookup

GHSA-25W9-JC8C-RX9W

Vulnerability from github – Published: 2022-11-22 15:30 – Updated: 2022-11-23 21:30

Details

Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation. When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately. We recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679

Severity

7.8 (High)


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

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  "affected": [],
  "aliases": [
    "CVE-2022-3910"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
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    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-22T13:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation. When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately. We recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679",
  "id": "GHSA-25w9-jc8c-rx9w",
  "modified": "2022-11-23T21:30:33Z",
  "published": "2022-11-22T15:30:26Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3910"
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      "type": "WEB",
      "url": "https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679"
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  "schema_version": "1.4.0",
  "severity": [
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    }
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}

CVE-2022-3910 (GCVE-0-2022-3910)

Vulnerability from cvelistv5 – Published: 2022-11-22 12:12 – Updated: 2025-04-21 13:46

Title

Use after free in IO_uring in the Linux Kernel

Summary

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-21 13:37 UTC

CWE

CWE-416 - Use After Free

Assigner

Google Google root

References

2 references

URL	Tags
https://github.com/torvalds/linux/commit/fc7222c3…
https://kernel.dance/#fc7222c3a9f56271fba02aabbfb…

Impacted products

1 product

Vendor	Product	Version
Linux	Linux Kernel	Affected: 5.18.0 , ≤ 5.19.10 (custom)

Date Public

2022-05-16 22:00

Credits

Bing-Jhong Billy Jheng of Starlabs

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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.

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

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.