CVE-2014-8086

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    CVE-2014-8086

    Published: 13 Oct 2014Last Modified: 10 Apr 2026

    Summary:

    Details: Race condition in the ext4_file_write_iter function in fs/ext4/file.c in the Linux kernel through 3.17 allows local users to cause a denial of service (file unavailability) via a combination of a write action and an F_SETFL fcntl operation for the O_DIRECT flag.

    References: http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html, http://rhn.redhat.com/errata/RHSA-2015-0290.html, http://rhn.redhat.com/errata/RHSA-2015-0694.html, http://www.openwall.com/lists/oss-security/2014/10/09/25, http://www.securityfocus.com/bid/70376, http://www.spinics.net/lists/linux-ext4/msg45683.html, http://www.spinics.net/lists/linux-ext4/msg45685.html, https://bugzilla.redhat.com/show_bug.cgi?id=1151353, https://exchange.xforce.ibmcloud.com/vulnerabilities/96922, https://lkml.org/lkml/2014/10/8/545, https://lkml.org/lkml/2014/10/9/129, http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html, http://www.openwall.com/lists/oss-security/2014/10/09/25, http://www.spinics.net/lists/linux-ext4/msg45683.html, http://www.spinics.net/lists/linux-ext4/msg45685.html, https://lkml.org/lkml/2014/10/8/545, https://lkml.org/lkml/2014/10/9/129, http://www.spinics.net/lists/linux-ext4/msg45683.html, https://lkml.org/lkml/2014/10/8/545, https://lkml.org/lkml/2014/10/9/129, http://www.spinics.net/lists/linux-ext4/msg45685.html, https://bugzilla.redhat.com/show_bug.cgi?id=1151353, https://bugzilla.redhat.com/show_bug.cgi?id=1151353

    Affected packages

    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-2014-8086 | CVE-DB