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kernel: mm: privilege escalation via MAP_PRIVATE COW breakage

🗓️ 26 Oct 2016 11:42:28Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Race in Linux kernel memory COW handling lets local unprivileged users gain write access via MAP_PRIVATE breakage.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6ppc64kernel0:2.6.32-642.6.2.el6kernel-0:2.6.32-642.6.2.el6.ppc64.rpm
Red Hat Enterprise Linux6s390xkernel0:2.6.32-642.6.2.el6kernel-0:2.6.32-642.6.2.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel0:2.6.32-642.6.2.el6kernel-0:2.6.32-642.6.2.el6.x86_64.rpm
Red Hat Enterprise Linux6anykernel0:2.6.32-642.6.2.el6.i686kernel-0:2.6.32-642.6.2.el6.i686.noarch.rpm
Red Hat Enterprise Linux6anykernel-abi-whitelists0:2.6.32-642.6.2.el6.noarchkernel-abi-whitelists-0:2.6.32-642.6.2.el6.noarch.noarch.rpm
Red Hat Enterprise Linux6ppc64kernel-bootwrapper0:2.6.32-642.6.2.el6kernel-bootwrapper-0:2.6.32-642.6.2.el6.ppc64.rpm
Red Hat Enterprise Linux6ppc64kernel-debug0:2.6.32-642.6.2.el6kernel-debug-0:2.6.32-642.6.2.el6.ppc64.rpm
Red Hat Enterprise Linux6s390xkernel-debug0:2.6.32-642.6.2.el6kernel-debug-0:2.6.32-642.6.2.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64kernel-debug0:2.6.32-642.6.2.el6kernel-debug-0:2.6.32-642.6.2.el6.x86_64.rpm
Red Hat Enterprise Linux6anykernel-debug0:2.6.32-642.6.2.el6.i686kernel-debug-0:2.6.32-642.6.2.el6.i686.noarch.rpm
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11 Apr 2026 22:06Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17
CVSS 27.2
EPSS0.93929
SSVC
5