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-rw-r--r--net/ipv4/cipso_ipv4.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index d19c9ac7727..e2077a3aa8c 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -832,8 +832,8 @@ static int cipso_v4_map_cat_rbm_hton(const struct cipso_v4_doi *doi_def,
switch (doi_def->type) {
case CIPSO_V4_MAP_PASS:
- net_spot_max = host_cat_len - 1;
- while (net_spot_max > 0 && host_cat[net_spot_max] == 0)
+ net_spot_max = host_cat_len;
+ while (net_spot_max > 0 && host_cat[net_spot_max - 1] == 0)
net_spot_max--;
if (net_spot_max > net_cat_len)
return -EINVAL;