Kernel: ext4: hang when mounting non-journal filesystems with orphan list
Published Apr 29, 2013
4.7
MEDIUMCVSS 2.0
EPSS 0.38%
Description
The ext4_orphan_del function in fs/ext4/namei.c in the Linux kernel before 3.7.3 does not properly handle orphan-list entries for non-journal filesystems, which allows physically proximate attackers to cause a denial of service (system hang) via a crafted filesystem on removable media, as demonstrated by the e2fsprogs tests/f_orphan_extents_inode/image.gz test.
Affected products
No data.
Configuration 1
- ≤ 3.7.2
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
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- 3.0.7
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- 3.0.68
- 3.1
- 3.1
- 3.1
- 3.1
- 3.1
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
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- 3.2.1
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- 3.3.1
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- 3.4
- 3.4.1
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- 3.4.32
- 3.5.1
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- 3.6.11
- 3.7
- 3.7.1
Configuration 2
- 5
- 6.0
- 2.0
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.
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: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 | 0.38% (0.00382) | 29.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.38% (0.00382) | 29.73th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00092) | 23.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.60th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (9)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e9a9a1ad619e7e987815d20262d36a2f95717ca x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html vendor-advisoryx_refsource_SUSE
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.3 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2013/04/26/16 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2013-2015 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=957123 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/0e9a9a1ad619e7e987815d20262d36a2f95717ca x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2013-2015
- https://www.cve.org/CVERecord?id=CVE-2013-2015
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e9a9a1ad619e7e987815d20262d36a2f95717ca | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html | vendor-advisoryx_refsource_SUSE | |
| http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.3 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2013/04/26/16 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2013-2015 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=957123 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/torvalds/linux/commit/0e9a9a1ad619e7e987815d20262d36a2f95717ca | x_refsource_CONFIRMVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-2015 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-2015 |
Change history (0)
No recorded changes yet.