Kernel: fs: ext4 race condition
Published Oct 13, 2014
4.7
MEDIUMCVSS 3.1
EPSS 0.37%
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.
Affected products
No data.
Configuration 1
- ≤ 3.17
Configuration 2
- 11
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-229.el7
Fixed · RHSA-2015:0290
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-229.rt56.144.el6rt
Fixed · RHSA-2015:0694
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-229.el7 | Fixed | RHSA-2015:0290 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-229.rt56.144.el6rt | Fixed | RHSA-2015:0694 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6. This issue affects the version of the kernel package as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2 may address this issue.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00374) | 28.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00374) | 28.98th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00049) | 12.39th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00043) | 11.63th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.04% (0.00043) | 9.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (14)
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0290.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0694.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.openwall.com/lists/oss-security/2014/10/09/25 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/70376 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.spinics.net/lists/linux-ext4/msg45683.html mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- http://www.spinics.net/lists/linux-ext4/msg45685.html mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-8086 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1151353 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/96922 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://lkml.org/lkml/2014/10/8/545 mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- https://lkml.org/lkml/2014/10/9/129 mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-8086
- https://www.cve.org/CVERecord?id=CVE-2014-8086
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://rhn.redhat.com/errata/RHSA-2015-0290.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://rhn.redhat.com/errata/RHSA-2015-0694.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2014/10/09/25 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/70376 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.spinics.net/lists/linux-ext4/msg45683.html | mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory | |
| http://www.spinics.net/lists/linux-ext4/msg45685.html | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2014-8086 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1151353 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/96922 | vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry | |
| https://lkml.org/lkml/2014/10/8/545 | mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory | |
| https://lkml.org/lkml/2014/10/9/129 | mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-8086 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-8086 |
Change history (0)
No recorded changes yet.