From 7d301d935f526257a576c35e024b5a7f224a63d0 Mon Sep 17 00:00:00 2001 From: Mamone Tarsha <maamoun.tk@googlemail.com> Date: Fri, 2 Jul 2021 23:49:43 +0300 Subject: [PATCH] [S390x] wipe hash subkey from stack once GHASH operation completed --- s390x/msa_x4/gcm-hash.asm | 1 + 1 file changed, 1 insertion(+) diff --git a/s390x/msa_x4/gcm-hash.asm b/s390x/msa_x4/gcm-hash.asm index 73a50824..3bbc8a63 100644 --- a/s390x/msa_x4/gcm-hash.asm +++ b/s390x/msa_x4/gcm-hash.asm @@ -92,6 +92,7 @@ PROLOGUE(_nettle_gcm_hash) brc 1,3b C safely branch back in case of partial completion 4: mvc 0(16,%r6),0(%r1) C store x + xc 16(16,%r1),16(%r1) C wipe hash subkey from stack FREE_STACK(PB_SIZE+16) lgdr %r6,%f0 C restore general register 6 br RA -- GitLab