UBUNTU-CVE-2024-39472

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    UBUNTU-CVE-2024-39472

    Published: 5 Jul 2024Last Modified: 22 Sept 2026
    Upstream:
    CVE-2024-39472
    Aliases:
    USN-7100-1
    USN-7100-2
    USN-7123-1

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: xfs: fix log recovery buffer allocation for the legacy h_size fixup Commit a70f9fe52daa ("xfs: detect and handle invalid iclog size set by mkfs") added a fixup for incorrect h_size values used for the initial umount record in old xfsprogs versions. Later commit 0c771b99d6c9 ("xfs: clean up calculation of LR header blocks") cleaned up the log reover buffer calculation, but stoped using the fixed up h_size value to size the log recovery buffer, which can lead to an out of bounds access when the incorrect h_size does not come from the old mkfs tool, but a fuzzer. Fix this by open coding xlog_logrec_hblks and taking the fixed h_size into account for this calculation.

    References: https://ubuntu.com/security/CVE-2024-39472, https://www.cve.org/CVERecord?id=CVE-2024-39472, https://git.kernel.org/linus/45cf976008ddef4a9c9a30310c9b4fb2a9a6602a, https://git.kernel.org/stable/c/45cf976008ddef4a9c9a30310c9b4fb2a9a6602a, https://ubuntu.com/security/notices/USN-7100-1, https://ubuntu.com/security/notices/USN-7100-2, https://ubuntu.com/security/notices/USN-7123-1, https://ubuntu.com/security/notices/USN-7144-1, https://ubuntu.com/security/notices/USN-7154-1, https://ubuntu.com/security/notices/USN-7155-1, https://ubuntu.com/security/notices/USN-7156-1, https://ubuntu.com/security/notices/USN-7154-2, https://ubuntu.com/security/notices/USN-7194-1, https://ubuntu.com/security/notices/USN-7196-1

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/linux-hwe-edge?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    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
    UBUNTU-CVE-2024-39472 | CVE-DB