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50a5d85f45
This fixes a bug in tcp_split_unsent_seg where oversized segments were not handled during the split, leading to pcb->unsent_oversized and useg->oversize_left getting out of sync with the split segment This would result in over-writing the pbuf if another call to tcp_write() happened after the split, but before the remainder of the split was sent in tcp_output Now pcb->unsent_oversized is explicitly cleared (because the remainder at the tail is never oversized) and useg->oversized_left is cleared after it is trimmed This also updates the test_tcp_persist_split unit test to explicitly check for this case |
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