Fix mask loading websocket unmasking function (SSE3 path)

lpereira · May 9, 2024 · 0289a1f · 0289a1f
1 parent c26a6ba
commit 0289a1f
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/lib/lwan-websocket.c b/src/lib/lwan-websocket.c
@@ -222,7 +222,8 @@ static void unmask(char *msg, size_t msg_len, char mask[static 4])
     }
 #elif defined(__SSE3__)
     if (msg_len >= 16) {
-        const __m128i mask128 = _mm_lddqu_si128((const float *)mask);
+        const __m128i mask128 =
+            _mm_castps_si128(_mm_load_ps1((const float *)mask));
 
         do {
             const __m128i v = _mm_lddqu_si128((const __m128i *)msg);