MGASA-2022-0213 - Updated kernel-linus packages fix security vulnerabilities

Publication date: 28 May 2022
URL: https://advisories.mageia.org/MGASA-2022-0213.html
Type: security
Affected Mageia releases: 8
CVE: CVE-2022-1729,
     CVE-2022-21499

This kernel-linus update is based on upstream 5.15.43 and fixes at least
the following security issues:

A race condition in the perf subsystem allows for a local privilege
escalation. NOTE: Mageia kernels by default has disabled the perf usage
for unprivileged users, effectively rendering this vulnerability harmless
(CVE-2022-1729).

Kernel could allow a remote attacker to bypass security restrictions,
caused by a lockdown break issue. By sending a specially-crafted request
using the kernel debugger, an attacker could exploit this vulnerability
to perform read and write access to kernel memory (CVE-2022-21499).

For other upstream fixes, see the referenced changelogs.

References:
- https://bugs.mageia.org/show_bug.cgi?id=30476
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.42
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.43
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1729
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21499

SRPMS:
- 8/core/kernel-linus-5.15.43-1.mga8