Author: ian
Date: Sat Mar 14 18:42:30 2015
New Revision: 279999
URL: https://svnweb.freebsd.org/changeset/base/279999
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/sched_ule.c
Modified: head/sys/kern/sched_ule.c
==============================================================================
--- head/sys/kern/sched_ule.c Sat Mar 14 18:38:07 2015 (r279998)
+++ head/sys/kern/sched_ule.c Sat Mar 14 18:42:30 2015 (r279999)
@@ -2830,7 +2830,7 @@ sysctl_kern_sched_topology_spec(SYSCTL_H
KASSERT(cpu_top != NULL, ("cpu_top isn't initialized"));
- topo = sbuf_new(NULL, NULL, 500, SBUF_AUTOEXTEND);
+ topo = sbuf_new_for_sysctl(NULL, NULL, 512, req);
if (topo == NULL)
return (ENOMEM);
@@ -2839,8 +2839,7 @@ sysctl_kern_sched_topology_spec(SYSCTL_H
sbuf_printf(topo, "</groups>\n");
if (err == 0) {
- sbuf_finish(topo);
- err = SYSCTL_OUT(req, sbuf_data(topo), sbuf_len(topo));
+ err = sbuf_finish(topo);
}
sbuf_delete(topo);
return (err);
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