Re: [patch added to the 3.12 stable tree] KVM: x86: Fix of previously incomplete fix for CVE-2014-8480

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

Regards,
Nadav

Jiri Slaby <jslaby@xxxxxxx> wrote:

> From: Nadav Amit <nadav.amit@xxxxxxxxx>
> 
> 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 <namit@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
> ---
> 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


--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]