APPLIED[J]: [SRU Focal/Impish/Jammy] KVM: s390: Return error on SIDA memop on normal guest

[Andrea Righi]

On Mon, Feb 14, 2022 at 11:08:42AM -0300, Thadeu Lima de Souza Cascardo wrote:
> From: Janis Schoetterl-Glausch <scgl at linux.ibm.com>
> 
> Refuse SIDA memops on guests which are not protected.
> For normal guests, the secure instruction data address designation,
> which determines the location we access, is not under control of KVM.
> 
> Fixes: 19e122776886 (KVM: S390: protvirt: Introduce instruction data area bounce buffer)
> Signed-off-by: Janis Schoetterl-Glausch <scgl at linux.ibm.com>
> Cc: stable at vger.kernel.org
> Signed-off-by: Christian Borntraeger <borntraeger at linux.ibm.com>
> (cherry picked from commit 2c212e1baedcd782b2535a3f86bc491977677c0e)
> CVE-2022-0516
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo at canonical.com>

Applied to jammy/linux.

Thanks,
-Andrea