Comment 1 for bug 1813201
Revision history for this message
| halfdog (halfdog) wrote Re: [Qemu-devel] [Bug 1813201] [NEW] QEMU TCG i386 / x86_64 system emulation crash when executing int instruction | #1 |
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bbfa235
(Get the code!)
Alberto Ortega writes:
> Public bug reported:
>
> QEMU version:
> -------------
>
> qemu from git, master branch commit
> d058a37a6e8daa8
>
> 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:/