CVE-2014-8086

MEDIUM

Linux Kernel < 3.17 - Denial of Service via Race Condition in ext4_file_write_iter

Title source: llm
STIX 2.1

Description

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 (11)

Core 11
Core References
Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lkml.org/lkml/2014/10/8/545
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/70376
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.spinics.net/lists/linux-ext4/msg45685.html
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1151353
Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.spinics.net/lists/linux-ext4/msg45683.html
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2015-0694.html
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2015-0290.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/96922
Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lkml.org/lkml/2014/10/9/129
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2014/10/09/25

Scores

CVSS v3 4.7
EPSS 0.0004
EPSS Percentile 10.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-362
Status published
Products (2)
linux/linux_kernel < 3.17
suse/suse_linux_enterprise_server 11 sp2
Published Oct 13, 2014
Tracked Since Feb 18, 2026