Alberto Ortega writes: > Public bug reported: > > QEMU version: > ------------- > > qemu from git, master branch commit > d058a37a6e8daa8d71a6f2b613eb415b69363755 > > Release versions are also affected. > > Summary: > -------- > > QEMU i386 and x86_64 system emulation crash when executing the following > "int" instruction: > > cd08 int 8 > > This generates a kernel NULL pointer dereference error in Linux, and a > BSOD error in Windows. > > No special permissions are required to execute the instruction, any > unprivileged user can execute it. > ...
Funny. Does Qemu share code with VirtualBox? If so, a similar missing CPL==0 check was fixed in Virtualbox 7 years ago. https://www.halfdog.net/Security/2012/VirtualBoxSoftwareInterrupt0x8GuestCrash/
