CVE-2022-48742 - CVE House
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Status published High CVE-2022-48742

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

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
ba7d49b1f0f8e5f24294a880ed576964059af5ef, 3.14, 0, 4.9.300, 4.14.265, 4.19.228, 5.4.177, 5.10.97, 5.15.20, 5.16.6, 5.17

Timeline

Official Publish: June 20th, 2024
Last Modified: May 11th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.