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authorandre <andre@FreeBSD.org>2006-01-18 14:24:39 +0000
committerandre <andre@FreeBSD.org>2006-01-18 14:24:39 +0000
commita08da7cd98bf2aff1c327d1becbb7614c27a40b4 (patch)
tree4e69a0c80481917df0c10480c9cecc38671545fd /sys/net/if_fddisubr.c
parent11141440e8f44bc40ad6efe297d1e4342166f159 (diff)
downloadFreeBSD-src-a08da7cd98bf2aff1c327d1becbb7614c27a40b4.zip
FreeBSD-src-a08da7cd98bf2aff1c327d1becbb7614c27a40b4.tar.gz
Return mbuf pointer or NULL from ip_fastforward() as the mbuf pointer
may have changed by m_pullup() during fastforward processing. While this is a bug it is actually never triggered in real world situations and it is not remotely exploitable. Found by: Coverity Prevent(tm) Coverity ID: CID780 Sponsored by: TCP/IP Optimization Fundraise 2005
Diffstat (limited to 'sys/net/if_fddisubr.c')
-rw-r--r--sys/net/if_fddisubr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/net/if_fddisubr.c b/sys/net/if_fddisubr.c
index d7c3e33..cc4b1fc 100644
--- a/sys/net/if_fddisubr.c
+++ b/sys/net/if_fddisubr.c
@@ -495,7 +495,7 @@ fddi_input(ifp, m)
switch (type) {
#ifdef INET
case ETHERTYPE_IP:
- if (ip_fastforward(m))
+ if ((m = ip_fastforward(m)) == NULL)
return;
isr = NETISR_IP;
break;
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