kernel: ocfs2_prepare_page_for_write function does not properly handle holes that cross page boundaries leads to information exposure
Published Apr 10, 2011
4.0
MEDIUMCVSS 3.1
EPSS 0.52%
Description
The ocfs2_prepare_page_for_write function in fs/ocfs2/aops.c in the Oracle Cluster File System 2 (OCFS2) subsystem in the Linux kernel before 2.6.39-rc1 does not properly handle holes that cross page boundaries, which allows local users to obtain potentially sensitive information from uninitialized disk locations by reading a file.
Affected products
No data.
Configuration 1
- ≤ 2.6.38.2
Configuration 2
- 8.04
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise MRG 2
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 Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, 6 and Red Hat Enterprise MRG as they did not provide support for the Oracle Cluster File System (OCFS).
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/A:N
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.52% (0.00518) | 41.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.52% (0.00518) | 39.71th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00085) | 22.50th | 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 | 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 (10)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=272b62c1f0f6f742046e45b50b6fec98860208a0 x_refsource_CONFIRM
- http://oss.oracle.com/pipermail/ocfs2-devel/2011-February/007846.html mailing-listx_refsource_MLISTExploitPatchThird Party Advisory
- http://secunia.com/advisories/43966 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.39-rc1 x_refsource_CONFIRMRelease NotesVendor Advisory
- http://www.ubuntu.com/usn/USN-1146-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-0463 Vendor Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=673037 x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1866254 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-0463
- https://www.cve.org/CVERecord?id=CVE-2011-0463
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=272b62c1f0f6f742046e45b50b6fec98860208a0 | x_refsource_CONFIRM | |
| http://oss.oracle.com/pipermail/ocfs2-devel/2011-February/007846.html | mailing-listx_refsource_MLISTExploitPatchThird Party Advisory | |
| http://secunia.com/advisories/43966 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.39-rc1 | x_refsource_CONFIRMRelease NotesVendor Advisory | |
| http://www.ubuntu.com/usn/USN-1146-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2011-0463 | Vendor Advisory | |
| https://bugzilla.novell.com/show_bug.cgi?id=673037 | x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1866254 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-0463 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-0463 |
Change history (0)
No recorded changes yet.