CVE-2022-48742

2024-06-2012:15:12

Debian Security Bug Tracker

security-tracker.debian.org

cve-2022-48742

rtnetlink

refresh master_dev/m_ops

__rtnl_newlink

unix

6.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.1%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12alllinux< 5.16.7-1linux_5.16.7-1_all.deb
Debian11alllinux< 5.10.103-1linux_5.10.103-1_all.deb
Debian10alllinux< 4.19.232-1linux_4.19.232-1_all.deb
Debian999alllinux< 5.16.7-1linux_5.16.7-1_all.deb
Debian13alllinux< 5.16.7-1linux_5.16.7-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	linux	< 5.16.7-1	linux_5.16.7-1_all.deb
Debian	11	all	linux	< 5.10.103-1	linux_5.10.103-1_all.deb
Debian	10	all	linux	< 4.19.232-1	linux_4.19.232-1_all.deb
Debian	999	all	linux	< 5.16.7-1	linux_5.16.7-1_all.deb
Debian	13	all	linux	< 5.16.7-1	linux_5.16.7-1_all.deb