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-rw-r--r--net/net.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/net.c b/net/net.c
index 034a5d6e67c..81905f63159 100644
--- a/net/net.c
+++ b/net/net.c
@@ -907,6 +907,9 @@ static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp)
int offset8, start, len, done = 0;
u16 ip_off = ntohs(ip->ip_off);
+ if (ip->ip_len < IP_MIN_FRAG_DATAGRAM_SIZE)
+ return NULL;
+
/* payload starts after IP header, this fragment is in there */
payload = (struct hole *)(pkt_buff + IP_HDR_SIZE);
offset8 = (ip_off & IP_OFFS);