num_ad is already accounted for in `sizeof(iov)` as iov has size `sizeof(struct iovec) * (num_ad+1)`. --- src/crypto.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/crypto.c b/src/crypto.c index 632117d..62edd44 100644 --- a/src/crypto.c +++ b/src/crypto.c @@ -311,7 +311,7 @@ bool aes_siv_encrypt(const uint8_t *key, size_t key_len, const uint8_t *in, struct iovec iov[num_ad + 1]; uint8_t v[16]; - memcpy(iov, ad, sizeof(iov) * num_ad); + memcpy(iov, ad, sizeof(struct iovec) * num_ad); iov[num_ad].iov_base = (void *)in; iov[num_ad].iov_len = in_len; num_ad++; @@ -368,7 +368,7 @@ bool aes_siv_decrypt(const uint8_t *key, size_t key_len, const uint8_t *in, if (in_len < 16) return false; - memcpy(iov, ad, sizeof(iov) * num_ad); + memcpy(iov, ad, sizeof(struct iovec) * num_ad); iov[num_ad].iov_base = (void *)out; iov[num_ad].iov_len = in_len - 16; num_ad++; -- 2.23.0