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kernel: Missing permission check in move_pages system call

🗓️ 10 Apr 2018 09:01:12Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 6 Views

The move_pages syscall lacks an effective uid check, enabling locals to learn setuid memory layout and bypass ASLR.

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Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7x86_64kernel-rt0:3.10.0-862.rt56.804.el7kernel-rt-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug0:3.10.0-862.rt56.804.el7kernel-rt-debug-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-debuginfo0:3.10.0-862.rt56.804.el7kernel-rt-debug-debuginfo-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-devel0:3.10.0-862.rt56.804.el7kernel-rt-debug-devel-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-kvm0:3.10.0-862.rt56.804.el7kernel-rt-debug-kvm-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-kvm-debuginfo0:3.10.0-862.rt56.804.el7kernel-rt-debug-kvm-debuginfo-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debuginfo0:3.10.0-862.rt56.804.el7kernel-rt-debuginfo-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debuginfo-common-x86_640:3.10.0-862.rt56.804.el7kernel-rt-debuginfo-common-x86_64-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-devel0:3.10.0-862.rt56.804.el7kernel-rt-devel-0:3.10.0-862.rt56.804.el7.x86_64.rpm
Red Hat Enterprise Linux7anykernel-rt-doc0:3.10.0-862.rt56.804.el7.noarchkernel-rt-doc-0:3.10.0-862.rt56.804.el7.noarch.noarch.rpm
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28 Jun 2026 12:31Current
7.2High risk
Vulners AI Score7.2
CVSS 22.1
CVSS 35.5
EPSS0.00469
6