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kernel: race condition in perf_event_open leads to privilege escalation

🗓️ 28 Jun 2022 09:57:46Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 5 Views

A race condition in Linux perf_event_open with tracepoint, hardware, and software events can enable privilege escalation and crash the system.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7x86_64kernel-rt0:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug0:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-debug-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-debuginfo0:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-debug-debuginfo-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-devel0:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-debug-devel-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-kvm0:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-debug-kvm-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-kvm-debuginfo0:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-debug-kvm-debuginfo-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debuginfo0:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-debuginfo-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debuginfo-common-x86_640:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-debuginfo-common-x86_64-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-devel0:3.10.0-1160.71.1.rt56.1212.el7kernel-rt-devel-0:3.10.0-1160.71.1.rt56.1212.el7.x86_64.rpm
Red Hat Enterprise Linux7anykernel-rt-doc0:3.10.0-1160.71.1.rt56.1212.el7.noarchkernel-rt-doc-0:3.10.0-1160.71.1.rt56.1212.el7.noarch.noarch.rpm
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28 Jun 2026 12:20Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17
EPSS0.0031
CWE-366
linux kernelrace conditionperformance eventstracepoint hardware softwareprivilege escalationsystem crash
5