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Diffstat (limited to 'net/sched/act_tunnel_key.c')
-rw-r--r--net/sched/act_tunnel_key.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index 30b58256d3da..6379f9568ab8 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -237,6 +237,10 @@ static int tunnel_key_copy_opts(const struct nlattr *nla, u8 *dst,
if (opt_len < 0)
return opt_len;
opts_len += opt_len;
+ if (opts_len > IP_TUNNEL_OPTS_MAX) {
+ NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
+ return -EINVAL;
+ }
if (dst) {
dst_len -= opt_len;
dst += opt_len;