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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 17:45:37 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 17:45:37 +0000
commit1c134c659904809d1ca3baf2bb295ca1c7107aee (patch)
treec55c18153612f7df8e54d15aa52db97552d7eb78 /net/ipv4/ip_gre.c
parentReleasing progress-linux version 5.10.209-2progress6u1. (diff)
downloadlinux-1c134c659904809d1ca3baf2bb295ca1c7107aee.tar.xz
linux-1c134c659904809d1ca3baf2bb295ca1c7107aee.zip
Merging upstream version 5.10.216.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/ipv4/ip_gre.c')
-rw-r--r--net/ipv4/ip_gre.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index a6ad0fe13..0ac652fef 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -278,8 +278,13 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
tpi->flags | TUNNEL_NO_KEY,
iph->saddr, iph->daddr, 0);
} else {
+ if (unlikely(!pskb_may_pull(skb,
+ gre_hdr_len + sizeof(*ershdr))))
+ return PACKET_REJECT;
+
ershdr = (struct erspan_base_hdr *)(skb->data + gre_hdr_len);
ver = ershdr->ver;
+ iph = ip_hdr(skb);
tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex,
tpi->flags | TUNNEL_KEY,
iph->saddr, iph->daddr, tpi->key);