svn commit: r184163 - in releng/6.4/sys: . netinet6
Bjoern A. Zeeb
bz at FreeBSD.org
Wed Oct 22 14:58:23 UTC 2008
Author: bz
Date: Wed Oct 22 14:58:23 2008
New Revision: 184163
URL: http://svn.freebsd.org/changeset/base/184163
Log:
MFC: r183923
Check that the mbuf len is positive (like we do in the v4 case)
to avoid possible panics.
PR: kern/119123
Approved by: re (kib)
Modified:
releng/6.4/sys/ (props changed)
releng/6.4/sys/netinet6/ip6_output.c
Modified: releng/6.4/sys/netinet6/ip6_output.c
==============================================================================
--- releng/6.4/sys/netinet6/ip6_output.c Wed Oct 22 14:56:15 2008 (r184162)
+++ releng/6.4/sys/netinet6/ip6_output.c Wed Oct 22 14:58:23 2008 (r184163)
@@ -2979,7 +2979,7 @@ ip6_setpktopts(control, opt, stickyopt,
if (control->m_next)
return (EINVAL);
- for (; control->m_len; control->m_data += CMSG_ALIGN(cm->cmsg_len),
+ for (; control->m_len > 0; control->m_data += CMSG_ALIGN(cm->cmsg_len),
control->m_len -= CMSG_ALIGN(cm->cmsg_len)) {
int error;
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