From: Matthew Dillon <dillon@apollo.backplane.com>
Date: Thu, 1 Dec 2011 23:53:24 +0000 (-0800)
Subject: libkvm - Fix seg-fault in ps output when loading a process's argv
X-Git-Tag: v3.0.0~512
X-Git-Url: http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/edec16bab2351da1b5e91ea64c7d7155562cf20d

libkvm - Fix seg-fault in ps output when loading a process's argv

* An offset calculation used when the string space is relocated by realloc
  was being stored in an 'int' instead of a 'size_t', causing the
  recalculated pointer to go wild.
---

diff --git a/lib/libkvm/kvm_proc.c b/lib/libkvm/kvm_proc.c
index 95f64ef..2ccef66 100644
--- a/lib/libkvm/kvm_proc.c
+++ b/lib/libkvm/kvm_proc.c
@@ -675,7 +675,7 @@ kvm_argv(kvm_t *kd, pid_t pid, u_long addr, int narg, int maxcnt)
 
 		/* will we exceed the malloc/realloced buffer? */
 		if (len + cc > kd->arglen) {
-			int off;
+			size_t off;
 			char **pp;
 			char *op = kd->argspc;