UBUNTU-CVE-2024-26747

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    UBUNTU-CVE-2024-26747

    Published: 3 Apr 2024Last Modified: 8 Oct 2026
    Upstream:
    CVE-2024-26747
    Aliases:
    USN-6820-1
    USN-6820-2
    USN-6821-1

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: usb: roles: fix NULL pointer issue when put module's reference In current design, usb role class driver will get usb_role_switch parent's module reference after the user get usb_role_switch device and put the reference after the user put the usb_role_switch device. However, the parent device of usb_role_switch may be removed before the user put the usb_role_switch. If so, then, NULL pointer issue will be met when the user put the parent module's reference. This will save the module pointer in structure of usb_role_switch. Then, we don't need to find module by iterating long relations.

    References: https://ubuntu.com/security/CVE-2024-26747, https://git.kernel.org/linus/1c9be13846c0b2abc2480602f8ef421360e1ad9e, https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1, https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913, https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa, https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734, https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db, https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e, https://www.cve.org/CVERecord?id=CVE-2024-26747, https://ubuntu.com/security/notices/USN-6820-1, https://ubuntu.com/security/notices/USN-6821-1, https://ubuntu.com/security/notices/USN-6821-2, https://ubuntu.com/security/notices/USN-6828-1, https://ubuntu.com/security/notices/USN-6820-2, https://ubuntu.com/security/notices/USN-6821-3, https://ubuntu.com/security/notices/USN-6821-4, https://ubuntu.com/security/notices/USN-6871-1, https://ubuntu.com/security/notices/USN-6892-1, https://ubuntu.com/security/notices/USN-6919-1

    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-2024-26747 | CVE-DB