fatal-signal: Fix bug in call_hooks() recursion detection.

Found by Chris Eagle via Fortify.

diff --git a/lib/fatal-signal.c b/lib/fatal-signal.c
index ac9e2a5..35a37bf 100644 (file)
--- a/lib/fatal-signal.c
+++ b/lib/fatal-signal.c
@@ -167,7 +167,7 @@ atexit_handler(void)
 static void
 call_hooks(int sig_nr)
 {
-    volatile sig_atomic_t recurse = 0;
+    static volatile sig_atomic_t recurse = 0;
     if (!recurse) {
         size_t i;