UBUNTU-CVE-2023-53721

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    UBUNTU-CVE-2023-53721

    Published: 22 Oct 2025Last Modified: 8 Oct 2026
    Upstream:
    CVE-2023-53721

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix a NULL pointer dereference in ath12k_mac_op_hw_scan() In ath12k_mac_op_hw_scan(), the return value of kzalloc() is directly used in memcpy(), which may lead to a NULL pointer dereference on failure of kzalloc(). Fix this bug by adding a check of arg.extraie.ptr. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

    References: https://ubuntu.com/security/CVE-2023-53721, https://www.cve.org/CVERecord?id=CVE-2023-53721, https://git.kernel.org/linus/8ad314da54c6dd223a6b6cc85019160aa842f659, https://git.kernel.org/stable/c/5a263df398b581189fe632b4ab8440f3dd76c251, https://git.kernel.org/stable/c/8ad314da54c6dd223a6b6cc85019160aa842f659

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.11.0-12.19

    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-2023-53721 | CVE-DB