This overflow is harmless because a few lines later we check:
if (num_counters != t->private->nentries) {
But it still upsets the static checkers.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 3d110c4..141350e 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1278,6 +1278,8 @@ static int do_update_counters(struct net *net, const char *name,
if (num_counters == 0)
return -EINVAL;
+ if (num_counters > INT_MAX / sizeof(*tmp))
+ return -ENOMEM;
tmp = vmalloc(num_counters * sizeof(*tmp));
if (!tmp)
--
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