MGASA-2021-0538

    Dashboard / Vulnerabilities / MGASA-2021-0538

    MGASA-2021-0538

    Published: 5 Dec 2021Last Modified: 16 Apr 2026

    Summary: Updated kernel packages fix security vulnerabilities

    Details: 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.

    References: https://advisories.mageia.org/MGASA-2021-0538.html, https://bugs.mageia.org/show_bug.cgi?id=29715, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.5, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.6

    Affected packages

    Package

    Name: kernel

    Purl: pkg:rpm/mageia/kernel?arch=source&distro=mageia-8

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.15.6-2.mga8

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    MGASA-2021-0538 | CVE-DB