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kernel: mm: privilege escalation via MAP_PRIVATE COW breakage

🗓️ 24 Oct 2016 13:31:27Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Race in Linux kernel memory copy on write allows unprivileged locals to write to read only mappings and escalate privileges.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64kernel0:3.10.0-327.36.3.el7kernel-0:3.10.0-327.36.3.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel0:3.10.0-327.36.3.el7kernel-0:3.10.0-327.36.3.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xkernel0:3.10.0-327.36.3.el7kernel-0:3.10.0-327.36.3.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64kernel0:3.10.0-327.36.3.el7kernel-0:3.10.0-327.36.3.el7.x86_64.rpm
Red Hat Enterprise Linux7anykernel-abi-whitelists0:3.10.0-327.36.3.el7.noarchkernel-abi-whitelists-0:3.10.0-327.36.3.el7.noarch.noarch.rpm
Red Hat Enterprise Linux7ppc64kernel-bootwrapper0:3.10.0-327.36.3.el7kernel-bootwrapper-0:3.10.0-327.36.3.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel-bootwrapper0:3.10.0-327.36.3.el7kernel-bootwrapper-0:3.10.0-327.36.3.el7.ppc64le.rpm
Red Hat Enterprise Linux7ppc64kernel-debug0:3.10.0-327.36.3.el7kernel-debug-0:3.10.0-327.36.3.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel-debug0:3.10.0-327.36.3.el7kernel-debug-0:3.10.0-327.36.3.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xkernel-debug0:3.10.0-327.36.3.el7kernel-debug-0:3.10.0-327.36.3.el7.s390x.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