[dpdk-dev] [Bug 501] igb: segfault in rte_eth_tx_done_cleanup() when using advanced descriptors
bugzilla at dpdk.org
bugzilla at dpdk.org
Sun Jul 5 13:23:52 CEST 2020
https://bugs.dpdk.org/show_bug.cgi?id=501
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 at dpdk.org
Reporter: pawelwod at 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 before
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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