kernel: Race condition between multiple sys_perf_event_open() calls
Published Feb 18, 2017
7.0
HIGHCVSS 3.1
EPSS 1.67%
Description
Race condition in kernel/events/core.c in the Linux kernel before 4.9.7 allows local users to gain privileges via a crafted application that makes concurrent perf_event_open system calls for moving a software group into a hardware context. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6786.
Affected products
No data.
- ≥ 3.18.54 · < 3.18.92
- ≥ 4.0 · < 4.4.65
- ≥ 4.5 · < 4.9.7
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-754.el6
Fixed · RHSA-2018:1854
Red Hat Enterprise Linux 7
kernel-0:3.10.0-693.el7
Fixed · RHSA-2017:1842
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-693.rt56.617.el7
Fixed · RHSA-2017:2077
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt
Fixed · RHSA-2017:2669
Red Hat Enterprise Linux 5
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-754.el6 | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-693.el7 | Fixed | RHSA-2017:1842 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-693.rt56.617.el7 | Fixed | RHSA-2017:2077 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt | Fixed | RHSA-2017:2669 |
| Red Hat Enterprise Linux 5 | 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 as the perf subsystem where the flaw was found is not present in this product. 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.
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:H/Au:N/C:C/I:C/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.67% (0.01674) | 75.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.67% (0.01674) | 73.74th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.31% (0.00308) | 51.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00100) | 43.03th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.09% (0.00092) | 39.78th | v3 (v2023.03.01) |
| Feb 10, 2024 | 0.09% (0.00092) | 37.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00107) | 41.81th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.44% (0.01440) | 32.36th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.44% (0.01440) | 0.00th | v1 |
References (15)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=321027c1fe77f892f4ea07846aeae08cefbbb290 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- http://www.debian.org/security/2017/dsa-3791 vendor-advisoryx_refsource_DEBIANThird Party AdvisoryVDB Entry
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7 x_refsource_CONFIRMRelease NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/02/16/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/96264 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1842 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2077 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2669 vendor-advisoryx_refsource_REDHATThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:1854 vendor-advisoryx_refsource_REDHATThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-6001 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1422825 x_refsource_CONFIRMIssue TrackingPatch
- https://github.com/torvalds/linux/commit/321027c1fe77f892f4ea07846aeae08cefbbb290 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-6001
- https://source.android.com/security/bulletin/pixel/2017-11-01 x_refsource_CONFIRMThird Party AdvisoryVDB Entry
- https://www.cve.org/CVERecord?id=CVE-2017-6001
Change history (0)
No recorded changes yet.