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kernel: x86_64 32 bit process register leak

🗓️ 15 Dec 2009 17:12:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

Kernel on x86_64 leaks kernel registers when returning an ia32 process to 64-bit mode.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux4ia64kernel0:2.6.9-89.0.18.ELkernel-0:2.6.9-89.0.18.EL.ia64.rpm
Red Hat Enterprise Linux4ppc64kernel0:2.6.9-89.0.18.ELkernel-0:2.6.9-89.0.18.EL.ppc64.rpm
Red Hat Enterprise Linux4s390kernel0:2.6.9-89.0.18.ELkernel-0:2.6.9-89.0.18.EL.s390.rpm
Red Hat Enterprise Linux4s390xkernel0:2.6.9-89.0.18.ELkernel-0:2.6.9-89.0.18.EL.s390x.rpm
Red Hat Enterprise Linux4x86_64kernel0:2.6.9-89.0.18.ELkernel-0:2.6.9-89.0.18.EL.x86_64.rpm
Red Hat Enterprise Linux4anykernel0:2.6.9-89.0.18.EL.i686kernel-0:2.6.9-89.0.18.EL.i686.noarch.rpm
Red Hat Enterprise Linux4anykernel0:2.6.9-89.0.18.EL.ppc64iserieskernel-0:2.6.9-89.0.18.EL.ppc64iseries.noarch.rpm
Red Hat Enterprise Linux4ia64kernel-debuginfo0:2.6.9-89.0.18.ELkernel-debuginfo-0:2.6.9-89.0.18.EL.ia64.rpm
Red Hat Enterprise Linux4ppc64kernel-debuginfo0:2.6.9-89.0.18.ELkernel-debuginfo-0:2.6.9-89.0.18.EL.ppc64.rpm
Red Hat Enterprise Linux4s390kernel-debuginfo0:2.6.9-89.0.18.ELkernel-debuginfo-0:2.6.9-89.0.18.EL.s390.rpm
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28 Jun 2026 12:08Current
6.8Medium risk
Vulners AI Score6.8
CVSS 22.1
EPSS0.00414
3