MGASA-2021-0397: kernel Mageia

Published

Published 07-08-2021Last modified 16-04-2026

Vulnerability summary

MGASA-2021-0397 is a vulnerability in kernel Mageia with no CVSS score yet.

Priority

Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

Not scored

010

No CVSS score recorded

EPSS scoreNot scoredRisk metrics not yet published.

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 2 · Downstream 0

CVE-2021-34556 CVE-2021-35477

Timeline

07-08-2021
PublishedVulnerability first disclosed.
16-04-2026
Last modifiedVulnerability 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.

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

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CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Mageia3 products

kernel< 5.10.56-1.mga8
kmod-virtualbox< 6.1.24-1.4.mga8
kmod-xtables-addons< 3.18-1.16.mga8

1 vendor · 3 products

References

8 links

Related vulnerabilities

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