MGASA-2022-0243 - Updated kernel-linus packages fix security vulnerabilities

Publication date: 29 Jun 2022
URL: https://advisories.mageia.org/MGASA-2022-0243.html
Type: security
Affected Mageia releases: 8
CVE: CVE-2022-21123,
     CVE-2022-21125,
     CVE-2022-21127,
     CVE-2022-21166

This kernel update-linus is based on upstream 5.15.50 and fixes at least the
following security issues:

Incomplete cleanup of multi-core shared buffers for some Intel Processorsmay allow an authenticated user to potentially enable information disclosure
via local access (CVE-2022-21123).

Incomplete cleanup of microarchitectural fill buffers on some Intel
Processors may allow an authenticated user to potentially enable information
disclosure via local access (CVE-2022-21125).

Incomplete cleanup in specific special register read operations for some
Intel Processors may allow an authenticated user to potentially enable
information disclosure via local access (CVE-2022-21127, CVE-2022-21166).

For other upstream fixes, see the referenced changelogs.

References:
- https://bugs.mageia.org/show_bug.cgi?id=30564
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.47
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.48
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.49
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.50
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00615.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21123
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21125
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21127
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21166

SRPMS:
- 8/core/kernel-linus-5.15.50-1.mga8