Vm86 - Syscall Task Switch Kernel Panic (Denial of Service) Privilege Escalation

Vm86 - Syscall Task Switch Kernel Panic Denial of Service Privilege Escalation Source: http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/ Introduction Problem description: The initial observation was, that the linux vm86 syscall, which allows to use the virtual-8086 mode from...

Vm86 - Syscall Task Switch Kernel Panic Denial of Service / Privilege Escalation

Source: http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/ Introduction Problem description: The initial observation was, that the linux vm86 syscall, which allows to use the virtual-8086 mode from userspace for emulating of old 8086 software as done with dosemu, was prone to...