Vulnerabilities CVE-2022-48742

CVE-2022-48742

High

Open

TLP:CLEAR

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

NVD CVE.org

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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.

Details

CVSS Score: 7.8
EPSS Score ⓘ: 0.24%

15th percentile
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: Jun 20, 2024
Last Modified: Aug 5, 2026

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