| From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 |
| From: Eric Biggers <ebiggers@google.com> |
| Date: Fri, 23 Oct 2020 15:27:48 -0700 |
| Subject: [PATCH] crypto: x86/poly1305 - add back a needed assignment |
| |
| commit c3a98c3ad5c0dc60a1ac66bf91147a3f39cac96b upstream. |
| |
| One of the assignments that was removed by commit 4a0c1de64bf9 ("crypto: |
| x86/poly1305 - Remove assignments with no effect") is actually needed, |
| since it affects the return value. |
| |
| This fixes the following crypto self-test failure: |
| |
| alg: shash: poly1305-simd test failed (wrong result) on test vector 2, cfg="init+update+final aligned buffer" |
| |
| Fixes: 4a0c1de64bf9 ("crypto: x86/poly1305 - Remove assignments with no effect") |
| Signed-off-by: Eric Biggers <ebiggers@google.com> |
| Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
| Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> |
| --- |
| arch/x86/crypto/poly1305_glue.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/arch/x86/crypto/poly1305_glue.c |
| +++ b/arch/x86/crypto/poly1305_glue.c |
| @@ -157,6 +157,7 @@ static unsigned int crypto_poly1305_setd |
| dctx->s[1] = get_unaligned_le32(&inp[4]); |
| dctx->s[2] = get_unaligned_le32(&inp[8]); |
| dctx->s[3] = get_unaligned_le32(&inp[12]); |
| + acc += POLY1305_BLOCK_SIZE; |
| dctx->sset = true; |
| } |
| } |