Linux Kernel 3.7.6 (RedHat x86/x64) - 'MSR' Driver Privilege Escalation

// PoC exploit for /dev/cpu//msr, 32bit userland on a 64bit host // can do whatever in the commented area, re-enable module support, etc // requires CONFIGX86MSR and just uid 0 // a small race exists between the time when the MSR is written to the first // time and when we issue our sysenter // w...