Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

don't access freed memory.

Browse Source
This commit is contained in:
yamt 2002-07-11 21:21:53 +00:00
parent d08670adc8
commit c56faa76d8
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/net/if_spppsubr.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: if_spppsubr.c,v 1.48 2002/07/06 18:33:45 itojun Exp $ */
/* $NetBSD: if_spppsubr.c,v 1.49 2002/07/11 21:21:53 yamt Exp $ */
/*
* Synchronous PPP/Cisco link level subroutines.
@ -28,7 +28,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_spppsubr.c,v 1.48 2002/07/06 18:33:45 itojun Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_spppsubr.c,v 1.49 2002/07/11 21:21:53 yamt Exp $");
#include "opt_inet.h"
#include "opt_ipx.h"
@ -733,9 +733,11 @@ sppp_output(struct ifnet *ifp, struct mbuf *m,
* - we flag TCP packets with src ip 0 as an error
*/
if (ip && ip->ip_src.s_addr == INADDR_ANY) {
u_int8_t proto = ip->ip_p;
m_freem(m);
splx(s);
if (ip->ip_p == IPPROTO_TCP)
if (proto == IPPROTO_TCP)
return(EADDRNOTAVAIL);
else
return(0);