Fix bug in md5 calculation

[fio.git] / verify.c

diff --git a/verify.c b/verify.c
index 91509e5b7819426c1576fb8f81896c2de1b1a896..6972fe3ff59a2a10604ba708c05c2524a562c83f 100644 (file)
--- a/verify.c
+++ b/verify.c
@@ -145,6 +145,7 @@ static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u,
                .hash = hash,
        };
 
+       memset(md5_ctx.hash, 0, sizeof(hdr->md5_digest));
        md5_update(&md5_ctx, p, hdr->len - sizeof(*hdr));
 
        if (memcmp(hdr->md5_digest, md5_ctx.hash, sizeof(hash))) {
@@ -236,6 +237,7 @@ static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
                .hash = (uint32_t *) hdr->md5_digest,
        };
 
+       memset(md5_ctx.hash, 0, sizeof(hdr->md5_digest));
        md5_update(&md5_ctx, p, len);
 }