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Re: bug in eth_drv_send (memory overwrite)
>
> But the check is made *after* the list length has been incremented. It
> is valid for sg_len to be equal to MAX_ETH_DRV_SG at this point.
Put a line
if (sg_len == MAX_ETH_DRV_SG) diag_print("ARRAY OVERWRITE\n");
after writing sg_list.
exactly:
693: sg_list[sg_len].buf = (CYG_ADDRESS)data;
694: sg_list[sg_len].len = len; // !!!!!! largest sg_len here is MAX_ETH_DRV_SG
new: if (sg_len == MAX_ETH_DRV_SG) diag_print("ARRAY OVERWRITE\n");
Sorry if I'm wrong.
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