CVE-2021-44879

    Dashboard / Vulnerabilities / CVE-2021-44879

    CVE-2021-44879

    Published: 14 Feb 2022Last Modified: 15 Mar 2026

    Summary:

    Details: In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.

    References: https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html, https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html, https://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao%40kernel.org/T/, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3, https://bugzilla.kernel.org/show_bug.cgi?id=215231, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9056d6489f5a41cfbb67f719d2c0ce61ead72d9f

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    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
    CVE-2021-44879 | CVE-DB