UBUNTU-CVE-2021-47017

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    UBUNTU-CVE-2021-47017

    Published: 28 Feb 2024Last Modified: 6 Aug 2026
    Upstream:
    CVE-2021-47017

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: ath10k: Fix a use after free in ath10k_htc_send_bundle In ath10k_htc_send_bundle, the bundle_skb could be freed by dev_kfree_skb_any(bundle_skb). But the bundle_skb is used later by bundle_skb->len. As skb_len = bundle_skb->len, my patch replaces bundle_skb->len to skb_len after the bundle_skb was freed.

    References: https://ubuntu.com/security/CVE-2021-47017, https://git.kernel.org/linus/8392df5d7e0b6a7d21440da1fc259f9938f4dec3, https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65, https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b, https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676, https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3, https://www.cve.org/CVERecord?id=CVE-2021-47017

    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-2021-47017 | CVE-DB