kernel: fs: ext4: fallocate zero range page size > block size BUG()
Published Oct 19, 2015
4.9
MEDIUMCVSS 2.0
EPSS 0.46%
Description
The ext4_zero_range function in fs/ext4/extents.c in the Linux kernel before 4.1 allows local users to cause a denial of service (BUG) via a crafted fallocate zero-range request.
Affected products
No data.
Configuration 1
- ≤ 4.0.5
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-229.14.1.ael7b
Fixed · RHSA-2015:1778
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-229.14.1.rt56.141.13.el7_1
Fixed · RHSA-2015:1788
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-229.rt56.161.el6rt
Fixed · RHSA-2015:1787
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-0:3.10.0-229.14.1.ael7b | Fixed | RHSA-2015:1778 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-229.14.1.rt56.141.13.el7_1 | Fixed | RHSA-2015:1788 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-229.rt56.161.el6rt | Fixed | RHSA-2015:1787 |
| 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 Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6. This issue does affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2. Future updates in the respective releases may address this issue.
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:L/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 2, 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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.46% (0.00457) | 37.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.46% (0.00457) | 36.01th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00094) | 24.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00060) | 27.36th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.06% (0.00061) | 26.58th | v3 (v2023.03.01) |
| Apr 2, 2024 | 0.06% (0.00061) | 24.51th | v3 (v2023.03.01) |
| Feb 22, 2024 | 0.07% (0.00071) | 28.57th | v3 (v2023.03.01) |
| Dec 17, 2023 | 0.05% (0.00051) | 17.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.28% (0.01282) | 67.79th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.55% (0.01547) | 74.40th | 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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0f2af21aae11972fa924374ddcf52e88347cf5a8 x_refsource_CONFIRMPatchVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1778.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1787.html vendor-advisoryx_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2015/02/23/14 mailing-listx_refsource_MLISTPatchThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRMThird Party Advisory
- http://www.securityfocus.com/bid/75139 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1034454 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.spinics.net/lists/linux-ext4/msg47193.html mailing-listx_refsource_MLISTPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-0275 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1193907 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/0f2af21aae11972fa924374ddcf52e88347cf5a8 x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2015-0275
- https://support.f5.com/csp/article/K05211147 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-0275
Change history (0)
No recorded changes yet.