Vulnerability-Lookup

GHSA-QG8Q-9C83-3485

Vulnerability from github – Published: 2024-06-20 12:31 – Updated: 2024-08-20 15:32

Details

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

rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()

While looking at one unrelated syzbot bug, I found the replay logic in __rtnl_newlink() to potentially trigger use-after-free.

It is better to clear master_dev and m_ops inside the loop, in case we have to replay it.

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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    "CVE-2022-48742"
  ],
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()\n\nWhile looking at one unrelated syzbot bug, I found the replay logic\nin __rtnl_newlink() to potentially trigger use-after-free.\n\nIt is better to clear master_dev and m_ops inside the loop,\nin case we have to replay it.",
  "id": "GHSA-qg8q-9c83-3485",
  "modified": "2024-08-20T15:32:11Z",
  "published": "2024-06-20T12:31:21Z",
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CVE-2022-48742 (GCVE-0-2022-48742)

Vulnerability from cvelistv5 – Published: 2024-06-20 11:13 – Updated: 2026-08-05 08:52

Title

rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()

Summary

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink() While looking at one unrelated syzbot bug, I found the replay logic in __rtnl_newlink() to potentially trigger use-after-free. It is better to clear master_dev and m_ops inside the loop, in case we have to replay it.

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: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 17:10 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/2cf180360d66bd657…
https://git.kernel.org/stable/c/7d9211678c0f0624f…
https://git.kernel.org/stable/c/a01e60a1ec6bef9be…
https://git.kernel.org/stable/c/bd43771ee9759dd9d…
https://git.kernel.org/stable/c/3bbe2019dd12b8d13…
https://git.kernel.org/stable/c/def5e7070079b2a21…
https://git.kernel.org/stable/c/36a9a0aee88194047…
https://git.kernel.org/stable/c/c6f6f2444bdbe0079…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ba7d49b1f0f8e5f24294a880ed576964059af5ef , < 2cf180360d66bd657e606c1217e0e668e6faa303 (git) Affected: ba7d49b1f0f8e5f24294a880ed576964059af5ef , < 7d9211678c0f0624f74cdff36117ab8316697bb8 (git) Affected: ba7d49b1f0f8e5f24294a880ed576964059af5ef , < a01e60a1ec6bef9be471fb7182a33c6d6f124e93 (git) Affected: ba7d49b1f0f8e5f24294a880ed576964059af5ef , < bd43771ee9759dd9dfae946bff190e2c5a120de5 (git) Affected: ba7d49b1f0f8e5f24294a880ed576964059af5ef , < 3bbe2019dd12b8d13671ee6cda055d49637b4c39 (git) Affected: ba7d49b1f0f8e5f24294a880ed576964059af5ef , < def5e7070079b2a214b3b1a2fbec623e6fbfe34a (git) Affected: ba7d49b1f0f8e5f24294a880ed576964059af5ef , < 36a9a0aee881940476b254e0352581401b23f210 (git) Affected: ba7d49b1f0f8e5f24294a880ed576964059af5ef , < c6f6f2444bdbe0079e41914a35081530d0409963 (git)
Linux	Linux	Affected: 3.14 Unaffected: 0 , < 3.14 (semver) Unaffected: 4.9.300 , ≤ 4.9.* (semver) Unaffected: 4.14.265 , ≤ 4.14.* (semver) Unaffected: 4.19.228 , ≤ 4.19.* (semver) Unaffected: 5.4.177 , ≤ 5.4.* (semver) Unaffected: 5.10.97 , ≤ 5.10.* (semver) Unaffected: 5.15.20 , ≤ 5.15.* (semver) Unaffected: 5.16.6 , ≤ 5.16.* (semver) Unaffected: 5.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

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.