Re: [dpdk-dev] [PATCH] net/iavf: fix overflow in maximum packet length config

> -Original Message- > From: Tudor Cornea > Sent: Thursday, August 5, 2021 7:35 PM > To: Wu, Jingjing ; Xing, Beilei > Cc: Zhang, Qi Z ; dev@dpdk.org; Tudor Cornea > > Subject: [PATCH] net/iavf: fix overflow in maximum packet length config > > The len variable, used in the computatio

[dpdk-dev] [PATCH] net/iavf: fix overflow in maximum packet length config

The len variable, used in the computation of max_pkt_len could overflow, if used to store the result of the following computation: rxq->rx_buf_len * IAVF_MAX_CHAINED_RX_BUFFERS Since, we could define the mbuf size to have a large value (i.e 13312), and IAVF_MAX_CHAINED_RX_BUFFERS is defined as 5,