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CentOS Linux: CVE-2021-41864: Important: kernel-rt security and bug fix update (Multiple Advisories)

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CentOS Linux: CVE-2021-41864: Important: kernel-rt security and bug fix update (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
10/02/2021
Created
05/14/2022
Added
05/13/2022
Modified
05/25/2023

Description

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

References

  • DSA-5096
  • CVE-2021-41864

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