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kernel: non-root can trigger cpu_idle soft lockup

🗓️ 02 Feb 2010 21:01:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Non-root can trigger cpu_idle soft lockup via hrtimer_start overflow in Linux kernel, enabling code execution or denial of service.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux5.2ia64kernel0:2.6.18-92.1.35.el5kernel-0:2.6.18-92.1.35.el5.ia64.rpm
Red Hat Enterprise Linux5.2ppc64kernel0:2.6.18-92.1.35.el5kernel-0:2.6.18-92.1.35.el5.ppc64.rpm
Red Hat Enterprise Linux5.2s390xkernel0:2.6.18-92.1.35.el5kernel-0:2.6.18-92.1.35.el5.s390x.rpm
Red Hat Enterprise Linux5.2x86_64kernel0:2.6.18-92.1.35.el5kernel-0:2.6.18-92.1.35.el5.x86_64.rpm
Red Hat Enterprise Linux5.2anykernel0:2.6.18-92.1.35.el5.i686kernel-0:2.6.18-92.1.35.el5.i686.noarch.rpm
Red Hat Enterprise Linux5.2anykernel-pae0:2.6.18-92.1.35.el5.i686kernel-PAE-0:2.6.18-92.1.35.el5.i686.noarch.rpm
Red Hat Enterprise Linux5.2anykernel-pae-debuginfo0:2.6.18-92.1.35.el5.i686kernel-PAE-debuginfo-0:2.6.18-92.1.35.el5.i686.noarch.rpm
Red Hat Enterprise Linux5.2anykernel-pae-devel0:2.6.18-92.1.35.el5.i686kernel-PAE-devel-0:2.6.18-92.1.35.el5.i686.noarch.rpm
Red Hat Enterprise Linux5.2ia64kernel-debug0:2.6.18-92.1.35.el5kernel-debug-0:2.6.18-92.1.35.el5.ia64.rpm
Red Hat Enterprise Linux5.2ppc64kernel-debug0:2.6.18-92.1.35.el5kernel-debug-0:2.6.18-92.1.35.el5.ppc64.rpm
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28 Jun 2026 12:09Current
6.6Medium risk
Vulners AI Score6.6
CVSS 27.2
EPSS0.00478
5