Use After Free Affecting kernel-rt-modules-extra package, versions <0:4.18.0-513.18.1.rt7.320.el8_9
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTMODULESEXTRA-5412962
- published 5 Apr 2023
- disclosed 16 May 2022
Introduced: 16 May 2022
CVE-2023-1838 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-modules-extra to version 0:4.18.0-513.18.1.rt7.320.el8_9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem.