core: thread: Added stack size validation

RIOT-OS · Mar 7, 2016 · 4f5bea7 · 4f5bea7
1 parent bad2b5c
commit 4f5bea7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/core/thread.c b/core/thread.c
@@ -146,6 +146,9 @@ kernel_pid_t thread_create(char *stack, int stacksize, char priority, int flags,
     /* round down the stacksize to a multiple of thread_t alignments (usually 16/32bit) */
     stacksize -= stacksize % ALIGN_OF(thread_t);
 
+    if (stacksize < 0) {
+        DEBUG("thread_create: stacksize is too small!\n");
+    }
     /* allocate our thread control block at the top of our stackspace */
     thread_t *cb = (thread_t *) (stack + stacksize);