From 466a126c6971bd9342abde4bd443fd44f304c1f7 Mon Sep 17 00:00:00 2001
From: "Todd C. Miller" <Todd.Miller@courtesan.com>
Date: Fri, 11 May 2012 07:57:01 -0400
Subject: [PATCH] The pointer to the siginfo_t struct in a signal handler may
 be NULL.

---
 src/exec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/exec.c b/src/exec.c
index 71b639bae..fd5cb26ae 100644
--- a/src/exec.c
+++ b/src/exec.c
@@ -636,7 +636,7 @@ handler_nofwd(int s, siginfo_t *info, void *context)
     unsigned char signo = (unsigned char)s;
 
     /* Only forward user-generated signals. */
-    if (info->si_code <= 0) {
+    if (info == NULL || info->si_code <= 0) {
 	/*
 	 * The pipe is non-blocking, if we overflow the kernel's pipe
 	 * buffer we drop the signal.  This is not a problem in practice.