CVE-2021-47016

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    CVE-2021-47016

    Published: 29 Feb 2024Last Modified: 15 Mar 2026

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: m68k: mvme147,mvme16x: Don't wipe PCC timer config bits Don't clear the timer 1 configuration bits when clearing the interrupt flag and counter overflow. As Michael reported, "This results in no timer interrupts being delivered after the first. Initialization then hangs in calibrate_delay as the jiffies counter is not updated." On mvme16x, enable the timer after requesting the irq, consistent with mvme147.

    References: https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967, https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21, https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576, https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878, https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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
    CVE-2021-47016 | CVE-DB