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kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources

🗓️ 07 Jul 2026 19:35:21Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 6 Views

ARM Linux kernel race in lookaside buffer causing memory permission issues enabling local privilege escalation or hypervisor escape.

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Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8x86_64kernel-rt0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-core0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-core-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-debug-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-core0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-debug-core-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-debuginfo0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-debug-debuginfo-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-devel0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-debug-devel-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-kvm0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-debug-kvm-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-debug-modules-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules-extra0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-debug-modules-extra-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debuginfo0:4.18.0-553.140.1.rt7.481.el8_10kernel-rt-debuginfo-0:4.18.0-553.140.1.rt7.481.el8_10.x86_64.rpm
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09 Jul 2026 05:33Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.19.1
EPSS0.0053
SSVC
6