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Date: Sun, 05 Jul 2020 11:23:52 +0000
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Subject: [dpdk-dev] [Bug 501] igb: segfault in rte_eth_tx_done_cleanup()
 when using advanced descriptors
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https://bugs.dpdk.org/show_bug.cgi?id=3D501

            Bug ID: 501
           Summary: igb: segfault in rte_eth_tx_done_cleanup() when using
                    advanced descriptors
           Product: DPDK
           Version: 19.05
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: pawelwod@gmail.com
  Target Milestone: ---

For advanced descriptors the eth_igb_xmit_pkts() function is using one
additional TX ring descriptor entry but is not setting txe->mbuf. This gives
segfault in igb_tx_done_cleanup() as sw_ring[tx_id].mbuf is not checked bef=
ore
calling  rte_pktmbuf_free_seg().

Driver code did't changed much since v19.05 so I think that the bug is still
present.

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