CVE-2024-27395 Affecting kernel-rt package, versions *
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRT-6852660
- published 15 May 2024
- disclosed 8 May 2024
Introduced: 8 May 2024
CVE-2024-27395 Open this link in a new tabHow to fix?
There is no fixed version for Centos:7 kernel-rt.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
net: openvswitch: Fix Use-After-Free in ovs_ct_exit
Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ovs_ct_limit_exit, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free.
To prevent this, it should be changed to hlist_for_each_entry_safe.
References
- https://access.redhat.com/security/cve/CVE-2024-27395
- https://git.kernel.org/stable/c/2db9a8c0a01fa1c762c1e61a13c212c492752994
- https://git.kernel.org/stable/c/35880c3fa6f8fe281a19975d2992644588ca33d3
- https://git.kernel.org/stable/c/589523cf0b384164e445dd5db8d5b1bf97982424
- https://git.kernel.org/stable/c/5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2
- https://git.kernel.org/stable/c/9048616553c65e750d43846f225843ed745ec0d4
- https://git.kernel.org/stable/c/bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1
- https://git.kernel.org/stable/c/eaa5e164a2110d2fb9e16c8a29e4501882235137
- https://git.kernel.org/stable/c/edee0758747d7c219e29db9ed1d4eb33e8d32865
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html