Fix utf8-c8 decode crash caused by off-by-1.

MoarVM · Apr 1, 2016 · 4afd7b6 · 4afd7b6
1 parent b9afd77
commit 4afd7b6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/strings/utf8_c8.c b/src/strings/utf8_c8.c
@@ -247,7 +247,7 @@ MVMString * MVM_string_utf8_c8_decode(MVMThreadContext *tc, const MVMObject *res
 
     orig_bytes = bytes;
     orig_utf8 = utf8;
-    last_accept_utf8 = utf8;
+    last_accept_utf8 = utf8 - 1;
 
     for (; bytes; ++utf8, --bytes) {
         switch(decode_utf8_byte(&state, &codepoint, (MVMuint8)*utf8)) {