Dionna Glaze 577a64725b virt/coco/sev-guest: Double-buffer messages ... [ Upstream commit 965006103a ] The encryption algorithms read and write directly to shared unencrypted memory, which may leak information as well as permit the host to tamper with the message integrity. Instead, copy whole messages in or out as needed before doing any computation on them. Fixes: d5af44dde5 ("x86/sev: Provide support for SNP guest request NAEs") Signed-off-by: Dionna Glaze <dionnaglaze@google.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20230214164638.1189804-3-dionnaglaze@google.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-05-11 23:03:10 +09:00
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efi_secret	…
sev-guest	virt/coco/sev-guest: Double-buffer messages	2023-05-11 23:03:10 +09:00