kernel: race condition in the TLB flush logic
Published Apr 27, 2016
7.4
HIGHCVSS 3.0
EPSS 0.32%
Description
Race condition in arch/x86/mm/tlb.c in the Linux kernel before 4.4.1 allows local users to gain privileges by triggering access to a paging structure by a different CPU.
Affected products
No data.
Configuration 1
- 12.04
- 14.04
Configuration 2
- ≤ 4.4
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-696.el6
Fixed · RHSA-2017:0817
Red Hat Enterprise Linux 7
kernel-0:3.10.0-514.el7
Fixed · RHSA-2016:2574
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-514.rt56.420.el7
Fixed · RHSA-2016:2584
Red Hat Enterprise Linux 5
kernel
Will not fix
Red Hat Enterprise MRG 2
realtime-kernel
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-696.el6 | Fixed | RHSA-2017:0817 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-514.el7 | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-514.rt56.420.el7 | Fixed | RHSA-2016:2584 |
| Red Hat Enterprise Linux 5 | kernel | Will not fix | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
AV:L/AC:M/Au:N/C:P/I:P/A:P
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 | 0.32% (0.00315) | 22.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.32% (0.00318) | 23.29th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00063) | 16.97th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00204) | 59.27th | v3 (v2023.03.01) |
| Nov 10, 2023 | 0.20% (0.00204) | 58.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00143) | 48.39th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (26)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=71b3c126e61177eb693423f2e18a1914205b165e x_refsource_CONFIRMVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2016-2574.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-2584.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2017-0817.html vendor-advisoryx_refsource_REDHAT
- http://seclists.org/oss-sec/2016/q1/194
- http://www.debian.org/security/2016/dsa-3503 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2016/01/25/1 mailing-listx_refsource_MLIST
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/81809 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2931-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2932-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2967-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2967-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2989-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2998-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2016-2069 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1301893 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/71b3c126e61177eb693423f2e18a1914205b165e x_refsource_CONFIRMPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-2069
- https://www.cve.org/CVERecord?id=CVE-2016-2069
Change history (0)
No recorded changes yet.