The CVE only exists in 3.17 - 3.18, so it should be unnecessary in 3.12.

Regards,
Nadav

Jiri Slaby <[email protected]> wrote:

> From: Nadav Amit <[email protected]>
> 
> This patch has been added to the 3.12 stable tree. If you have any
> objections, please let us know.
> 
> ===============
> 
> commit 63ea0a49ae0b145b91ff2b070c01b66fc75854b9 upstream.
> 
> STR and SLDT with rip-relative operand can cause a host kernel oops.
> Mark them as DstMem as well.
> 
> Signed-off-by: Nadav Amit <[email protected]>
> Signed-off-by: Paolo Bonzini <[email protected]>
> Signed-off-by: Jiri Slaby <[email protected]>
> ---
> arch/x86/kvm/emulate.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
> index ab1d45928ce7..ee2bc3be0d1e 100644
> --- a/arch/x86/kvm/emulate.c
> +++ b/arch/x86/kvm/emulate.c
> @@ -3622,8 +3622,8 @@ static const struct opcode group5[] = {
> };
> 
> static const struct opcode group6[] = {
> -     DI(Prot,        sldt),
> -     DI(Prot,        str),
> +     DI(Prot | DstMem,       sldt),
> +     DI(Prot | DstMem,       str),
>       II(Prot | Priv | SrcMem16, em_lldt, lldt),
>       II(Prot | Priv | SrcMem16, em_ltr, ltr),
>       N, N, N, N,
> -- 
> 2.2.2


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