MGASA-2021-0397

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 packages fix security vulnerabilities This kernel 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). Other fixes in this update: - btrfs: fix lost inode on log replay after mix of fsync, rename and inode eviction - btrfs: fix race causing unnecessary inode logging during link and rename - watchdog: iTCO_wdt: Fix detection of SMI-off case (fixes sporadic reboots on some systems) - Revert "ACPICA: Fix memory leak caused by _CID repair function", fixing boot failures on some systems - fix another ACPI issue causing some systems to boot slowly or not at all after kernel 5.10.50 - revert: 'scsi: sr: Return appropriate error code when disk is ejected' (fixes DVD opening on resume from suspend or standby, mga #29262) - Revert "usb: renesas-xhci: Fix handling of unknown ROM state" (fixes renesas usb pci stopped working, mga #29285) - Revert "drm/i915: Propagate errors on awaiting already signaled fences" and "drm/i915/gem: Asynchronous cmdparser" (fixes an issue where an app hang can cause X server to hang) For other upstream fixes, see the referenced changelogs.

Affected Systems

  • mageia•kernel

    < 5.10.56-1.mga8

  • mageia•kmod-virtualbox

    < 6.1.24-1.4.mga8

  • mageia•kmod-xtables-addons

    < 3.18-1.16.mga8

References (8)