svn commit: r280000 - head/sys/kern

[Ian Lepore]

Author: ian
Date: Sat Mar 14 18:46:33 2015
New Revision: 280000
URL: https://svnweb.freebsd.org/changeset/base/280000

Log:
  Use sbuf_new_for_sysctl() instead of plain sbuf_new() to ensure sysctl
  string returned to userland is nulterminated.
  
  PR:           195668

Modified:
  head/sys/kern/kern_fail.c

Modified: head/sys/kern/kern_fail.c
==============================================================================
--- head/sys/kern/kern_fail.c	Sat Mar 14 18:42:30 2015	(r279999)
+++ head/sys/kern/kern_fail.c	Sat Mar 14 18:46:33 2015	(r280000)
@@ -394,11 +394,10 @@ fail_point_sysctl(SYSCTL_HANDLER_ARGS)
 	int error;
 
 	/* Retrieving */
-	sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND);
+	sbuf_new_for_sysctl(&sb, NULL, 128, req);
 	fail_point_get(fp, &sb);
 	sbuf_trim(&sb);
-	sbuf_finish(&sb);
-	error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb));
+	error = sbuf_finish(&sb);
 	sbuf_delete(&sb);
 
 	/* Setting */