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kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role

🗓️ 23 Jul 2026 00:41:55Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 12 Views

Fixes a use-after-free in shadow paging when host page directory entry changes inside guest, risking instability, denial of service, or guest-to-host escape.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.6ppc64lekpatch-patch-5_14_0-570_116_11-5.el9_6kpatch-patch-5_14_0-570_116_1-1-5.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6x86_64kpatch-patch-5_14_0-570_116_11-5.el9_6kpatch-patch-5_14_0-570_116_1-1-5.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6ppc64lekpatch-patch-5_14_0-570_116_1-debuginfo1-5.el9_6kpatch-patch-5_14_0-570_116_1-debuginfo-1-5.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6x86_64kpatch-patch-5_14_0-570_116_1-debuginfo1-5.el9_6kpatch-patch-5_14_0-570_116_1-debuginfo-1-5.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6ppc64lekpatch-patch-5_14_0-570_116_1-debugsource1-5.el9_6kpatch-patch-5_14_0-570_116_1-debugsource-1-5.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6x86_64kpatch-patch-5_14_0-570_116_1-debugsource1-5.el9_6kpatch-patch-5_14_0-570_116_1-debugsource-1-5.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6ppc64lekpatch-patch-5_14_0-570_17_11-20.el9_6kpatch-patch-5_14_0-570_17_1-1-20.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6x86_64kpatch-patch-5_14_0-570_17_11-20.el9_6kpatch-patch-5_14_0-570_17_1-1-20.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6ppc64lekpatch-patch-5_14_0-570_17_1-debuginfo1-20.el9_6kpatch-patch-5_14_0-570_17_1-debuginfo-1-20.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6x86_64kpatch-patch-5_14_0-570_17_1-debuginfo1-20.el9_6kpatch-patch-5_14_0-570_17_1-debuginfo-1-20.el9_6.x86_64.rpm
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20 Aug 2026 15:18Current
7.6High risk
Vulners AI Score7.6
CVSS 3.18.8
EPSS0.00908
SSVC
12