UBUNTU-CVE-2024-26716

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    UBUNTU-CVE-2024-26716

    Published: 3 Apr 2024Last Modified: 6 Feb 2026
    Upstream:
    CVE-2024-26716
    Aliases:
    USN-6895-1
    USN-6895-2
    USN-6895-3

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: usb: core: Prevent null pointer dereference in update_port_device_state Currently, the function update_port_device_state gets the usb_hub from udev->parent by calling usb_hub_to_struct_hub. However, in case the actconfig or the maxchild is 0, the usb_hub would be NULL and upon further accessing to get port_dev would result in null pointer dereference. Fix this by introducing an if check after the usb_hub is populated.

    References: https://ubuntu.com/security/CVE-2024-26716, https://git.kernel.org/linus/12783c0b9e2c7915a50d5ec829630ff2da50472c, https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873, https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f, https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c, https://www.cve.org/CVERecord?id=CVE-2024-26716, https://ubuntu.com/security/notices/USN-6895-1, https://ubuntu.com/security/notices/USN-6895-2, https://ubuntu.com/security/notices/USN-6900-1, https://ubuntu.com/security/notices/USN-6895-3, https://ubuntu.com/security/notices/USN-6895-4

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?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-2024-26716 | CVE-DB