Fix alignment of hash buffer in dhcpv6_response_is_valid

md5_final() writes to the hash buffer in 32-bit chunks, so it needs
to be 32-bit aligned.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index cbf6991f31a0b73f841301183104d70575e7104b..f91f2cf16b8c8ff6fe881310433b98b68e2d8780 100644 (file)
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -702,7 +702,8 @@ static bool dhcpv6_response_is_valid(const void *buf, ssize_t len,
                                continue;
 
                        md5_ctx_t md5;
-                       uint8_t serverhash[16], secretbytes[64], hash[16];
+                       uint8_t serverhash[16], secretbytes[64];
+                       uint32_t hash[4];
                        memcpy(serverhash, r->key, sizeof(serverhash));
                        memset(r->key, 0, sizeof(r->key));