UBUNTU-CVE-2021-46948

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    UBUNTU-CVE-2021-46948

    Published: 27 Feb 2024Last Modified: 6 Aug 2026
    Upstream:
    CVE-2021-46948

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: sfc: farch: fix TX queue lookup in TX event handling We're starting from a TXQ label, not a TXQ type, so efx_channel_get_tx_queue() is inappropriate (and could return NULL, leading to panics).

    References: https://ubuntu.com/security/CVE-2021-46948, https://git.kernel.org/linus/83b09a1807415608b387c7bc748d329fefc5617e, https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253, https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052, https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c, https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e, https://www.cve.org/CVERecord?id=CVE-2021-46948

    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-2021-46948 | CVE-DB