MGASA-2021-0398

Advisory lineage Upstream: 2 Downstream: 0
Published: 07 Aug 2021, 09:31
Last modified:16 Apr 2026, 04:24

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

07 Aug 2021, 09:31
Published
Vulnerability first disclosed
16 Apr 2026, 04:24
Last Modified
Vulnerability information updated

Description

Updated kernel-linus packages fix security vulnerabilities This kernel-linus update is based on upstream 5.10.56 and fixes at least the following security issues: In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack (CVE-2021-34556). In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value (CVE-2021-35477). For other upstream fixes, see the referenced changelogs.

Affected Systems

  • mageia•kernel-linus

    < 5.10.56-1.mga8

References (6)