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submitted by: archie@whistle.com

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Don't search for interface addresses matching interface "NULL"
it's likely to cause a page fault..
this can be triggered by the ipfw code rejecting a locally generated
packet (e.g. you decide to make some network unreachable by local users)
This commit is contained in:
Julian Elischer 1997-05-23 22:33:16 +00:00
parent a1eed73d33
commit 41fbdc966f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=26079
1 changed files with 2 additions and 2 deletions
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4
sys/netinet/ip_icmp.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)ip_icmp.c 8.2 (Berkeley) 1/4/94
* $Id$
* $Id: ip_icmp.c,v 1.25 1997/02/22 09:41:33 peter Exp $
*/
#include <sys/param.h>
@ -517,7 +517,7 @@ icmp_reflect(m)
break;
}
icmpdst.sin_addr = t;
if (ia == (struct in_ifaddr *)0)
if ((ia == (struct in_ifaddr *)0) && m->m_pkthdr.rcvif)
ia = (struct in_ifaddr *)ifaof_ifpforaddr(
(struct sockaddr *)&icmpdst, m->m_pkthdr.rcvif);
/*