CVE-2017-18221

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    CVE-2017-18221

    Published: 7 Mar 2018Last Modified: 15 Mar 2026

    Summary:

    Details: The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.

    References: https://usn.ubuntu.com/3655-2/, https://usn.ubuntu.com/3655-1/, https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.4, http://www.securityfocus.com/bid/103321, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=70feee0e1ef331b22cc51f383d532a0d043fbdcc, https://github.com/torvalds/linux/commit/70feee0e1ef331b22cc51f383d532a0d043fbdcc

    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-2017-18221 | CVE-DB