Fix hangs and segfaults when egregiously long symbol is used.

lespeholt · Sep 5, 2014 · 839cf67 · 839cf67
1 parent 8b1fb17
commit 839cf67
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/alloc.c b/src/alloc.c
@@ -462,6 +462,10 @@ static jl_sym_t *mk_symbol(const char *str)
     size_t len = strlen(str);
     size_t nb = (sizeof(jl_sym_t)+len+1+7)&-8;
 
+    if (len >= SYM_POOL_SIZE) {
+        jl_error("Symbol length exceeds maximum length");
+    }
+
 #ifdef MEMDEBUG
     sym = (jl_sym_t*)malloc(nb);
 #else