kernel: ext4: ext4_ext_insert_extent() kernel oops
Published Mar 1, 2013
4.0
MEDIUMCVSS 2.0
EPSS 0.36%
Description
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.
Affected products
No data.
- < 3.0
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-274.18.1.el5
Fixed · RHSA-2012:0107
Red Hat Enterprise Linux 5.6 EUS - Server Only
kernel-0:2.6.18-238.37.1.el5
Fixed · RHSA-2012:0517
Red Hat Enterprise Linux 6
kernel-0:2.6.32-220.el6
Fixed · RHSA-2011:1530
Red Hat Enterprise Linux 6.1 EUS - Server Only
kernel-0:2.6.32-131.25.1.el6
Fixed · RHSA-2012:0116
Red Hat Enterprise Linux 4
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-274.18.1.el5 | Fixed | RHSA-2012:0107 |
| Red Hat Enterprise Linux 5.6 EUS - Server Only | kernel-0:2.6.18-238.37.1.el5 | Fixed | RHSA-2012:0517 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-220.el6 | Fixed | RHSA-2011:1530 |
| Red Hat Enterprise Linux 6.1 EUS - Server Only | kernel-0:2.6.32-131.25.1.el6 | Fixed | RHSA-2012:0116 |
| Red Hat Enterprise Linux 4 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 as it did not include support for EXT4 filesystem. It did not affect the Linux kernel as shipped with Red Hat Enterprise MRG as it has backported the upstream commit 667eff35 that addressed this issue. This has been addressed in Red Hat Enterprise Linux 5 and 6 via https://rhn.redhat.com/errata/RHSA-2012-0107.html and https://rhn.redhat.com/errata/RHSA-2011-1530.html.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:H/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.36% (0.00359) | 27.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00356) | 27.25th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.15% (0.00153) | 33.49th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 13, 2023 | 0.95% (0.00950) | 31.86th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.28% (0.01282) | 67.60th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
No CWE recorded.
References (8)
- http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0 x_refsource_CONFIRMBroken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2011/10/24/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-3638 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=747942 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2011-3638
- https://www.cve.org/CVERecord?id=CVE-2011-3638
| Link | Providers | Tags |
|---|---|---|
| http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0 | x_refsource_CONFIRMBroken Link | |
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2011/10/24/2 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2011-3638 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=747942 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-3638 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-3638 |
Change history (0)
No recorded changes yet.