This CVE only affect 3.17 and 3.18. It shouldn’t hurt, but you can omit this
patch from 3.14.
Regards,
Nadav
Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> 3.14-stable review patch. If anyone has any objections, please let me know.
>
> ------------------
>
> From: Nadav Amit <nadav.amit@xxxxxxxxx>
>
> 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 <namit@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
>
> ---
> arch/x86/kvm/emulate.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> --- a/arch/x86/kvm/emulate.c
> +++ b/arch/x86/kvm/emulate.c
> @@ -3668,8 +3668,8 @@ 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,
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