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nfp: flower: Use struct_size() helper in kmalloc()
Make use of the struct_size() helper instead of an open-coded version, in order to avoid any potential type mistakes or integer overflows that, in the worst scenario, could lead to heap overflows. Also, address the following sparse warnings: drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c:359:25: warning: using sizeof on a flexible structure Link: https://github.com/KSPP/linux/issues/174 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Acked-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -356,7 +356,7 @@ __nfp_tun_add_route_to_cache(struct list_head *route_list,
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return 0;
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}
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entry = kmalloc(sizeof(*entry) + add_len, GFP_ATOMIC);
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entry = kmalloc(struct_size(entry, ip_add, add_len), GFP_ATOMIC);
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if (!entry) {
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spin_unlock_bh(list_lock);
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return -ENOMEM;
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