CVE-2022-48742

Name: CVE-2022-48742
Creator: NVD / NIST
Published: 2024-06-20T12:15:12.517+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2022-48742 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.24%

14.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 3.14, < 4.9.300
Linux	Linux Kernel	>= 4.10, < 4.14.265
Linux	Linux Kernel	>= 4.15, < 4.19.228
Linux	Linux Kernel	>= 4.20, < 5.4.177
Linux	Linux Kernel	>= 5.5, < 5.10.97
Linux	Linux Kernel	>= 5.11, < 5.15.20
Linux	Linux Kernel	>= 5.16, < 5.16.6

References

https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303Mailing List, Patch
https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210Mailing List, Patch
https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39Mailing List, Patch
https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8Mailing List, Patch
https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93Mailing List, Patch
https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5Mailing List, Patch
https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963Mailing List, Patch
https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34aMailing List, Patch
https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303Mailing List, Patch
https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210Mailing List, Patch
https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39Mailing List, Patch
https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8Mailing List, Patch
https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93Mailing List, Patch
https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5Mailing List, Patch
https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963Mailing List, Patch
https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34aMailing List, Patch

Timeline

Published: Jun 20, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-48742?

How severe is CVE-2022-48742?

CVE-2022-48742 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2022-48742?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-48742?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST