CVE-2024-26774

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    CVE-2024-26774

    Published: 3 Apr 2024Last Modified: 8 Oct 2026

    Summary: ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt

    Details: In the Linux kernel, the following vulnerability has been resolved: ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt Determine if bb_fragments is 0 instead of determining bb_free to eliminate the risk of dividing by zero when the block bitmap is corrupted.

    References: https://git.kernel.org/stable/c/687061cfaa2ac3095170e136dd9c29a4974f41d4, https://git.kernel.org/stable/c/8b40eb2e716b503f7a4e1090815a17b1341b2150, https://git.kernel.org/stable/c/8cf9cc602cfb40085967c0d140e32691c8b71cf3, https://git.kernel.org/stable/c/993bf0f4c393b3667830918f9247438a8f6fdb5b, https://git.kernel.org/stable/c/f32d2a745b02123258026e105a008f474f896d6a, https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26774.json, https://nvd.nist.gov/vuln/detail/CVE-2024-26774, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 83e80a6e3543f37f74c8e48a5f305b054b65ce2a
    Fixed -8b40eb2e716b503f7a4e1090815a17b1341b2150

    Affected versions

    v5.19.17
    v5.19.16
    v5.19.15
    v5.19.14
    v5.19.13
    v5.19.12

    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-2024-26774 | CVE-DB