UBUNTU-CVE-2021-29649

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-29649

    UBUNTU-CVE-2021-29649

    Published: 30 Mar 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-29649
    Aliases:
    USN-4948-1

    Summary:

    Details: An issue was discovered in the Linux kernel before 5.11.11. The user mode driver (UMD) has a copy_process() memory leak, related to a lack of cleanup steps in kernel/usermode_driver.c and kernel/bpf/preload/bpf_preload_kern.c, aka CID-f60a85cad677.

    References: https://ubuntu.com/security/CVE-2021-29649, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.11, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f60a85cad677c4f9bb4cadd764f1d106c38c7cf8, https://ubuntu.com/security/notices/USN-4948-1, https://www.cve.org/CVERecord?id=CVE-2021-29649

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?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-2021-29649 | CVE-DB