UBUNTU-CVE-2023-52457

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    UBUNTU-CVE-2023-52457

    Published: 23 Feb 2024Last Modified: 8 Oct 2026
    Upstream:
    CVE-2023-52457
    Aliases:
    USN-6688-1
    USN-6725-1
    USN-6725-2

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed Returning an error code from .remove() makes the driver core emit the little helpful error message: remove callback returned a non-zero value. This will be ignored. and then remove the device anyhow. So all resources that were not freed are leaked in this case. Skipping serial8250_unregister_port() has the potential to keep enough of the UART around to trigger a use-after-free. So replace the error return (and with it the little helpful error message) by a more useful error message and continue to cleanup.

    References: https://ubuntu.com/security/CVE-2023-52457, https://git.kernel.org/stable/c/b502fb43f7fb55aaf07f6092ab44657595214b93, https://git.kernel.org/stable/c/bc57f3ef8a9eb0180606696f586a6dcfaa175ed0, https://git.kernel.org/stable/c/828cd829483f0cda920710997aed79130b0af690, https://git.kernel.org/stable/c/d74173bda29aba58f822175d983d07c8ed335494, https://git.kernel.org/stable/c/887a558d0298d36297daea039954c39940228d9b, https://git.kernel.org/stable/c/95e4e0031effad9837af557ecbfd4294a4d8aeee, https://git.kernel.org/stable/c/ad90d0358bd3b4554f243a425168fc7cebe7d04e, https://ubuntu.com/security/notices/USN-6688-1, https://ubuntu.com/security/notices/USN-6725-1, https://ubuntu.com/security/notices/USN-6726-1, https://www.cve.org/CVERecord?id=CVE-2023-52457, https://ubuntu.com/security/notices/USN-6725-2, https://ubuntu.com/security/notices/USN-6726-2, https://ubuntu.com/security/notices/USN-6726-3, 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-2023-52457 | CVE-DB