MGASA-2021-0538: kernel Mageia

Published

Published 05-12-2021Last modified 16-04-2026

Vulnerability summary

MGASA-2021-0538 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 3 · Downstream 0

CVE-2020-27820 CVE-2021-4001 CVE-2021-4002

Timeline

05-12-2021
PublishedVulnerability first disclosed.
16-04-2026
Last modifiedVulnerability information updated.

Description

Updated kernel packages fix security vulnerabilities This kernel update is based on upstream 5.15.6 and fixes at least the following security issues: A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver) (CVE-2020-27820). A race condition when the eBPF map is frozen (CVE-2021-4001). A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data (CVE-2021-4002). In addition to the upstream changes, we also have added the following fixes: - ata: ahci: Add Green Sardine vendor ID as board_ahci_mobile - cpufreq: intel_pstate: ITMT support for overclocked system - Revert "drm/i915: Implement Wa_1508744258" - drm/i915/adl-n: Enable Alder Lake N platform - hwmon: (asus_wmi_sensors) Support X370 Asus WMI - hwmon: (asus_wmi_ec_sensors) Support B550 Asus WMI - hwmon: (k10temp) Support up to 12 CCDs on AMD Family of processors - hwmon: (nct6775) Use superio_*() function pointers in sio_data - hwmon: (nct6775) Use nct6775_*() function pointers in nct6775_data - hwmon: (nct6775) Support access via Asus WMI - hwmon: (nct6775) Add additional ASUS motherboards - hwmon: (nct6775) add Pro WS X570-ACE - hwmon: (nct6775) add ProArt X570-CREATOR WIFI - mmc: sdhci-pci: Add PCI ID for Intel ADL - pinctrl: amd: Fix wakeups when IRQ is shared with SC - rt2x00: do not mark device gone on EPROTO errors during start - xhci: Fix commad ring abort, write all 64 bits to CRCR register 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< 5.15.6-2.mga8
kmod-virtualbox< 6.1.30-1.2.mga8
kmod-xtables-addons< 3.18-1.34.mga8

1 vendor · 3 products

References

4 links

Related vulnerabilities

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