Kernel: mm: try_to_unmap_cluster() should lock_page() before mlocking
Published May 11, 2014
4.9
MEDIUMCVSS 2.0
EPSS 0.55%
Description
The try_to_unmap_cluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service (system crash) by triggering a memory-usage pattern that requires removal of page-table mappings.
Affected products
No data.
Configuration 1
- < 3.14.3
Configuration 2
- 14.04
Configuration 3
- 7.0
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-504.el6
Fixed · RHSA-2014:1392
Red Hat Enterprise MRG 2
kernel-rt-0:3.10.33-rt32.34.el6rt
Fixed · RHSA-2014:0557
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-504.el6 | Fixed | RHSA-2014:1392 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.10.33-rt32.34.el6rt | Fixed | RHSA-2014:0557 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5. This issue affects the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6. Future kernel updates for Red Hat Enterprise Linux 6 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 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 | 0.55% (0.00545) | 43.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.55% (0.00545) | 41.21th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00042) | 9.79th | 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 | 1.28% (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 (13)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=57e68e9cd65b4b8eb4045a1e0d0746458502554c x_refsource_CONFIRM
- http://secunia.com/advisories/59386 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/59599 third-party-advisoryx_refsource_SECUNIABroken Link
- http://www.debian.org/security/2014/dsa-2926 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.3 x_refsource_CONFIRMMailing ListPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2014/05/01/7 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/67162 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2240-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-3122 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1093076 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/57e68e9cd65b4b8eb4045a1e0d0746458502554c x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-3122
- https://www.cve.org/CVERecord?id=CVE-2014-3122
Change history (0)
No recorded changes yet.