UBUNTU-CVE-2024-26598

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    UBUNTU-CVE-2024-26598

    Published: 23 Feb 2024Last Modified: 8 Oct 2026
    Upstream:
    CVE-2024-26598
    Aliases:
    USN-6688-1
    USN-6725-1
    USN-6725-2

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache There is a potential UAF scenario in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command. The root of the problem is that vgic_its_check_cache() does not elevate the refcount on the vgic_irq before dropping the lock that serializes refcount changes. Have vgic_its_check_cache() raise the refcount on the returned vgic_irq and add the corresponding decrement after queueing the interrupt.

    References: https://ubuntu.com/security/CVE-2024-26598, https://git.kernel.org/stable/c/d04acadb6490aa3314f9c9e087691e55de153b88, https://git.kernel.org/stable/c/ba7be666740847d967822bed15500656b26bc703, https://git.kernel.org/stable/c/12c2759ab1343c124ed46ba48f27bd1ef5d2dff4, https://git.kernel.org/stable/c/dba788e25f05209adf2b0175eb1691dc89fb1ba6, https://git.kernel.org/stable/c/65b201bf3e9af1b0254243a5881390eda56f72d1, https://git.kernel.org/stable/c/dd3956a1b3dd11f46488c928cb890d6937d1ca80, https://git.kernel.org/stable/c/ad362fe07fecf0aba839ff2cc59a3617bd42c33f, https://ubuntu.com/security/notices/USN-6688-1, https://ubuntu.com/security/notices/USN-6725-1, https://www.cve.org/CVERecord?id=CVE-2024-26598, https://ubuntu.com/security/notices/USN-6725-2, https://ubuntu.com/security/notices/USN-6767-1, https://ubuntu.com/security/notices/USN-6767-2, https://ubuntu.com/security/notices/USN-6818-1, https://ubuntu.com/security/notices/USN-6819-1, https://ubuntu.com/security/notices/USN-6818-2, https://ubuntu.com/security/notices/USN-6819-2, https://ubuntu.com/security/notices/USN-6819-3, https://ubuntu.com/security/notices/USN-6818-3, https://ubuntu.com/security/notices/USN-6818-4, https://ubuntu.com/security/notices/USN-6819-4

    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-2024-26598 | CVE-DB