Module Name: src
Committed By: maxv
Date: Thu Apr 19 05:16:02 UTC 2018
Modified Files:
src/sys/kern: uipc_mbuf.c
Log Message:
The mbuf length is allowed to be zero.
To generate a diff of this commit:
cvs rdiff -u -r1.191 -r1.192 src/sys/kern/uipc_mbuf.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/kern/uipc_mbuf.c
diff -u src/sys/kern/uipc_mbuf.c:1.191 src/sys/kern/uipc_mbuf.c:1.192
--- src/sys/kern/uipc_mbuf.c:1.191 Tue Apr 17 07:58:31 2018
+++ src/sys/kern/uipc_mbuf.c Thu Apr 19 05:16:02 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: uipc_mbuf.c,v 1.191 2018/04/17 07:58:31 maxv Exp $ */
+/* $NetBSD: uipc_mbuf.c,v 1.192 2018/04/19 05:16:02 maxv Exp $ */
/*
* Copyright (c) 1999, 2001 The NetBSD Foundation, Inc.
@@ -62,7 +62,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uipc_mbuf.c,v 1.191 2018/04/17 07:58:31 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uipc_mbuf.c,v 1.192 2018/04/19 05:16:02 maxv Exp $");
#ifdef _KERNEL_OPT
#include "opt_mbuftrace.h"
@@ -1940,7 +1940,7 @@ m_verify_packet(struct mbuf *m)
low = n->m_dat;
high = low + MLEN;
}
- if (__predict_false(dat + len <= dat)) {
+ if (__predict_false(dat + len < dat)) {
panic("%s: incorrect length (len = %d)", __func__, len);
}
if (__predict_false((dat < low) || (dat + len > high))) {
