CVE-2016-2547

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    CVE-2016-2547

    Published: 27 Apr 2016Last Modified: 15 Mar 2026

    Summary:

    Details: sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.

    References: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html, http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html, http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1, http://www.securityfocus.com/bid/83378, http://www.securitytracker.com/id/1035298, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html, http://www.debian.org/security/2016/dsa-3503, http://www.ubuntu.com/usn/USN-2930-3, http://www.ubuntu.com/usn/USN-2931-1, http://www.ubuntu.com/usn/USN-2932-1, http://www.ubuntu.com/usn/USN-2967-2, http://www.ubuntu.com/usn/USN-2929-1, http://www.ubuntu.com/usn/USN-2930-1, http://www.ubuntu.com/usn/USN-2967-1, http://www.ubuntu.com/usn/USN-2929-2, http://www.ubuntu.com/usn/USN-2930-2, https://bugzilla.redhat.com/show_bug.cgi?id=1311566, https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d, http://www.openwall.com/lists/oss-security/2016/01/19/1

    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-2016-2547 | CVE-DB