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kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events

🗓️ 08 Aug 2023 08:34:42Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Use-after-free in perf_group_detach when detach and removal on execution run together, causing crash or privilege escalation.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64bpftool0:4.18.0-477.21.1.el8_8bpftool-0:4.18.0-477.21.1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebpftool0:4.18.0-477.21.1.el8_8bpftool-0:4.18.0-477.21.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8s390xbpftool0:4.18.0-477.21.1.el8_8bpftool-0:4.18.0-477.21.1.el8_8.s390x.rpm
Red Hat Enterprise Linux8x86_64bpftool0:4.18.0-477.21.1.el8_8bpftool-0:4.18.0-477.21.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8aarch64bpftool-debuginfo0:4.18.0-477.21.1.el8_8bpftool-debuginfo-0:4.18.0-477.21.1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebpftool-debuginfo0:4.18.0-477.21.1.el8_8bpftool-debuginfo-0:4.18.0-477.21.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8s390xbpftool-debuginfo0:4.18.0-477.21.1.el8_8bpftool-debuginfo-0:4.18.0-477.21.1.el8_8.s390x.rpm
Red Hat Enterprise Linux8x86_64bpftool-debuginfo0:4.18.0-477.21.1.el8_8bpftool-debuginfo-0:4.18.0-477.21.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8aarch64kernel0:4.18.0-477.21.1.el8_8kernel-0:4.18.0-477.21.1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lekernel0:4.18.0-477.21.1.el8_8kernel-0:4.18.0-477.21.1.el8_8.ppc64le.rpm
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29 Jun 2026 21:38Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.17.8
EPSS0.00251
SSVC
CWE-416
linux kernelperformance eventsuse after freegroup detachremove on executionlocal userprivilege escalationcrash vulnerability
4