Messages in this thread | | | From | Andy Lutomirski <> | Date | Mon, 25 Jun 2018 08:47:40 -0700 | Subject | Re: qemu-system-x86_64: mov_ss_trap_64 PANIC: double fault, error_code: 0x0 |
| |
On Sun, Jun 24, 2018 at 10:41 PM Naresh Kamboju <naresh.kamboju@linaro.org> wrote: > > Kselftest test case mov_ss_trap_64 is causing kernel panic on > qemu-system-x86_64 and PASS on real x86_64 hardware. > > Test code snippet, > main() { > <> > printf("[RUN]\tMOV SS; CS CS INT3\n"); > asm volatile ("mov %[ss], %%ss; .byte 0x2e, 0x2e; int3" :: [ss] "m" (ss)); > <> > } >
This smells like CVE-2018-1087. Can you confirm that your *host* kernel is patched?
CVE-2018-1087 is extremely severe, and if your host kernel is not patched, I think you need to apply some serious pressure on your vendor to get with the program.
--Andy
| |