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tunnels: fix out of bounds access when building IPv6 PMTU error
[platform/kernel/linux-starfive.git]
/
net
/
ipv4
/
ip_tunnel_core.c
diff --git
a/net/ipv4/ip_tunnel_core.c
b/net/ipv4/ip_tunnel_core.c
index
586b1b3
..
80ccd66
100644
(file)
--- a/
net/ipv4/ip_tunnel_core.c
+++ b/
net/ipv4/ip_tunnel_core.c
@@
-332,7
+332,7
@@
static int iptunnel_pmtud_build_icmpv6(struct sk_buff *skb, int mtu)
};
skb_reset_network_header(skb);
- csum =
csum_partial(icmp6h
, len, 0);
+ csum =
skb_checksum(skb, skb_transport_offset(skb)
, len, 0);
icmp6h->icmp6_cksum = csum_ipv6_magic(&nip6h->saddr, &nip6h->daddr, len,
IPPROTO_ICMPV6, csum);