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 tha…

published 2017-02-18 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15069

cvss: 7.0; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.7%; EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits: 0; none known

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.

Patch / fix

fixed in 1 distros 4 links 4

linux linux_kernel 3.18.92, 4.4.65, 4.9.7

debian ubuntu red hat arch linux

linux Debian 14, Debian 13, Debian 12 4.9.10-1

debian advisories DEBIAN-CVE-2017-6001

linux Ubuntu 16.04 LTS 4.4.0-79.100
linux-aws Ubuntu 16.04 LTS 4.4.0-1018.27
linux-gke Ubuntu 16.04 LTS 4.4.0-1014.14
linux-hwe Ubuntu 16.04 LTS 4.10.0-32.36~16.04.1
linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1057.64
linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-79.100~14.04.1
linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1059.63

ubuntu advisories UBUNTU-CVE-2017-6001

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 6 2.6.32-754.el6
perf RHEL 6 2.6.32-754.el6
python-perf RHEL 6 2.6.32-754.el6
kernel-kdump RHEL 6 2.6.32-754.el6
kernel-firmware RHEL 6 2.6.32-754.el6
kernel-bootwrapper RHEL 6 2.6.32-754.el6
kernel-abi-whitelists RHEL 6 2.6.32-754.el6
kernel-debuginfo-common-i686 RHEL 6 2.6.32-754.el6

red hat advisories RHSA-2018:1854 RHSA-2017:2669 RHSA-2017:2077 RHSA-2017:1842

linux Arch Linux 4.9.7-1
linux-lts Arch Linux 4.9.13-1

arch linux advisories AVG-187 AVG-188

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-6001 updated 2026-11-05 cvss 7.0

kernel: Race condition between multiple sys_perf_event_open() calls

Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-693.el7, kernel 3.10.0-693.el7, python-perf 3.10.0-693.el7, kernel-tools 3.10.0-693.el7, kernel-tools-libs 3.10.0-693.el7, kernel-abi-whitelists 3.10.0-693.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-693.el7, kernel 3.10.0-693.el7, python-perf 3.10.0-693.el7, kernel-tools 3.10.0-693.el7, kernel-tools-libs 3.10.0-693.el7, kernel-abi-whitelists 3.10.0-693.el7, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.el7
fixed: vendor fix RHSA-2017:1842
Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
fixed: vendor fix RHSA-2018:1854
Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-693.rt56.617.el7, kernel-rt-trace 3.10.0-693.rt56.617.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-693.rt56.617.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-693.rt56.617.el7, kernel-rt-kvm 3.10.0-693.rt56.617.el7, kernel-rt-trace 3.10.0-693.rt56.617.el7, kernel-rt-debug-kvm 3.10.0-693.rt56.617.el7, kernel-rt-trace-kvm 3.10.0-693.rt56.617.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-693.rt56.617.el7
fixed: vendor fix RHSA-2017:2077
Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-kdump 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-bootwrapper 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, +4 more
fixed: vendor fix RHSA-2018:1854
Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-693.el7, kernel 3.10.0-693.el7, python-perf 3.10.0-693.el7, kernel-kdump 3.10.0-693.el7, kernel-tools 3.10.0-693.el7, kernel-tools-libs 3.10.0-693.el7, +6 more
fixed: vendor fix RHSA-2017:1842
Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-ppc64 2.6.32-754.el6, kernel-debuginfo-common-s390x 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
fixed: vendor fix RHSA-2018:1854
Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-693.el7, kernel-debuginfo-common-x86_64 3.10.0-693.el7, kernel-debuginfo-common-ppc64le 3.10.0-693.el7
fixed: vendor fix RHSA-2017:1842
Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
fixed: vendor fix RHSA-2018:1854

show 5 more

Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-693.el7, kernel 3.10.0-693.el7, python-perf 3.10.0-693.el7, kernel-tools 3.10.0-693.el7, kernel-tools-libs 3.10.0-693.el7, kernel-abi-whitelists 3.10.0-693.el7, +1 more
fixed: vendor fix RHSA-2017:1842
Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6
fixed: vendor fix RHSA-2018:1854
Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.el7
fixed: vendor fix RHSA-2017:1842
Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-trace 3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-vanilla 3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-firmware 3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-693.2.1.rt56.585.el6rt
fixed: vendor fix RHSA-2017:2669
Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux Client (v. 7) kernel-headers 3.10.0-693.el7 Red Hat Enterprise Linux ComputeNode (v. 7) kernel-headers 3.10.0-693.el7 Red Hat Enterprise Linux Server (v. 7) kernel-headers 3.10.0-693.el7 Red Hat Enterprise Linux Workstation (v. 7) kernel-headers 3.10.0-693.el7
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	7.6	AV:N/AC:H/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

Technology feeds

Linux kernel rss critical rss

References

github.com /torvalds/linux/commit/321027c1fe77f892f4ea07846aeae08cefbbb290
issue-tracking, patch, third-party-advisory
git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=321027c1fe77f892f4ea07846aeae08cefbbb290
issue-tracking, patch, third-party-advisory
bugzilla.redhat.com /show_bug.cgi?id=1422825
issue-tracking, patch
openwall.com /lists/oss-security/2017/02/16/1
mailing-list, patch, third-party-advisory
access.redhat.com /errata/RHSA-2017:2669
vendor-advisory, third-party-advisory, vdb-entry
access.redhat.com /errata/RHSA-2018:1854
vendor-advisory, third-party-advisory, vdb-entry
access.redhat.com /errata/RHSA-2017:2077
vendor-advisory, third-party-advisory
access.redhat.com /errata/RHSA-2017:1842
vendor-advisory, third-party-advisory
debian.org /security/2017/dsa-3791
vendor-advisory, third-party-advisory, vdb-entry
kernel.org /pub/linux/kernel/v4.x/ChangeLog-4.9.7
release-notes, vendor-advisory
securityfocus.com /bid/96264
vdb-entry, third-party-advisory
source.android.com /security/bulletin/pixel/2017-11-01
third-party-advisory, vdb-entry

Sources

CVE List CVE-2017-6001
NVD CVE-2017-6001

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary