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kernel: use after free in eventpoll.c may lead to escalation of privilege

🗓️ 19 Apr 2022 16:19:00Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

A logic error in eventpoll.c in the Linux kernel allows a use after free, enabling local privilege escalation.

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ATTACKERKB		CVE-2020-0466
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Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2021:1093)
9 Feb 202200:00
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Tenable Nessus		CentOS 8 : kernel (CESA-2021:1093)
9 Apr 202100:00
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Tenable Nessus		CentOS 7 : kpatch-patch (RHSA-2022:0592)
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Tenable Nessus		CentOS 7 : kernel (RHSA-2022:0620)
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Tenable Nessus		EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1009)
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6i686kernel2.6.32-754.47.1.el6kernel-2.6.32-754.47.1.el6.i686.rpm
Red Hat Enterprise Linux6s390xkernel2.6.32-754.47.1.el6kernel-2.6.32-754.47.1.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel2.6.32-754.47.1.el6kernel-2.6.32-754.47.1.el6.x86_64.rpm
Red Hat Enterprise Linux6noarchkernel-abi-whitelists2.6.32-754.47.1.el6kernel-abi-whitelists-2.6.32-754.47.1.el6.noarch.rpm
Red Hat Enterprise Linux6i686kernel-debug2.6.32-754.47.1.el6kernel-debug-2.6.32-754.47.1.el6.i686.rpm
Red Hat Enterprise Linux6s390xkernel-debug2.6.32-754.47.1.el6kernel-debug-2.6.32-754.47.1.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel-debug2.6.32-754.47.1.el6kernel-debug-2.6.32-754.47.1.el6.x86_64.rpm
Red Hat Enterprise Linux6i686kernel-debug-debuginfo2.6.32-754.47.1.el6kernel-debug-debuginfo-2.6.32-754.47.1.el6.i686.rpm
Red Hat Enterprise Linux6s390xkernel-debug-debuginfo2.6.32-754.47.1.el6kernel-debug-debuginfo-2.6.32-754.47.1.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel-debug-debuginfo2.6.32-754.47.1.el6kernel-debug-debuginfo-2.6.32-754.47.1.el6.x86_64.rpm
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28 Jun 2026 12:36Current
7.2High risk
Vulners AI Score7.2
CVSS 27.2
CVSS 3.17.8
EPSS0.00268
CWE-416
linux kerneluse after freeprivilege escalationlocal exploitno user interactionsystem availabilityconfidentiality impact
6