From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Fri, 11 May 2012 15:00:07 +0000 (-0400)
Subject: The pointer to the siginfo_t struct in a signal handler may be NULL.
X-Git-Tag: SUDO_1_7_9p1~2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=eb0bf83fc07383a99435d384af0d6a21f2879678;p=sudo

The pointer to the siginfo_t struct in a signal handler may be NULL.

--HG--
branch : 1.7
---

diff --git a/exec.c b/exec.c
index 965f89d75..9d9572a44 100644
--- a/exec.c
+++ b/exec.c
@@ -661,7 +661,7 @@ handler_nofwd(s, info, 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.