Module Name: src
Committed By: riastradh
Date: Thu Aug 27 13:44:41 UTC 2020
Modified Files:
src/sys/net: if_wg.c
Log Message:
wg: Assert MCLBYTES is enough for requested length in wg_get_mbuf.
To generate a diff of this commit:
cvs rdiff -u -r1.29 -r1.30 src/sys/net/if_wg.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/net/if_wg.c
diff -u src/sys/net/if_wg.c:1.29 src/sys/net/if_wg.c:1.30
--- src/sys/net/if_wg.c:1.29 Thu Aug 27 03:05:34 2020
+++ src/sys/net/if_wg.c Thu Aug 27 13:44:41 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: if_wg.c,v 1.29 2020/08/27 03:05:34 riastradh Exp $ */
+/* $NetBSD: if_wg.c,v 1.30 2020/08/27 13:44:41 riastradh Exp $ */
/*
* Copyright (C) Ryota Ozaki <ozaki.ry...@gmail.com>
@@ -41,7 +41,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_wg.c,v 1.29 2020/08/27 03:05:34 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_wg.c,v 1.30 2020/08/27 13:44:41 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
@@ -3637,6 +3637,9 @@ wg_get_mbuf(size_t leading_len, size_t l
{
struct mbuf *m;
+ KASSERT(leading_len <= MCLBYTES);
+ KASSERT(len <= MCLBYTES - leading_len);
+
m = m_gethdr(M_DONTWAIT, MT_DATA);
if (m == NULL)
return NULL;
