Test-Label: intel-Testing Test-Status: SUCCESS _Testing PASS_ DPDK git repo: dpdk-next-virtio commit a62b0fbf8e367c88d28d78210db1b28c8eac4b1b Author: Yunjian Wang Date: Fri Oct 10 16:41:36 2025 +0800 vhost: fix a double fetch when dequeue offloading The hdr->csum_start does two successive reads from user space to read a variable length data structure. The result overflow if the data structure changes between the two reads. To fix this, we can prevent double fetch issue by copying virtio_hdr to the temporary variable. Fixes: 4dc4e33ffa10 ("net/virtio: fix Rx checksum calculation") Cc: stable@dpdk.org Signed-off-by: Yunjian Wang Reviewed-by: Maxime Coquelin Testing Summary : 18 Case Done, 18 Successful, 0 Failures TestPlan: pf_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/pf_smoke_test_plan.rst vf_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/vf_smoke_test_plan.rst virtio_smoke: http://git.dpdk.org/tools/dts/tree/test_plans/virtio_smoke_test_plan.rst TestSuite: pf_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_pf_smoke.py vf_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_vf_smoke.py virtio_smoke: http://git.dpdk.org/tools/dts/tree/tests/TestSuite_virtio_smoke.py OS : Ubuntu 22.04.5 LTS Kernel : 6.8.0-40-generic GCC : 11.4.0-1ubuntu1~22.04.2 NIC : Ethernet Controller E810-C for SFP Target : x86_64-native-linuxapp-gcc Test result details: +-------------+---------------------------+-------+ | suite | case | status| +-------------+---------------------------+-------+ | asan_smoke | test_rxtx_with_ASan_enable| passed| | pf_smoke | test_pf_jumbo_frames | passed| | pf_smoke | test_pf_rss | passed| | pf_smoke | test_pf_tx_rx_queue | passed| | vf_smoke | test_vf_rss | passed| | vf_smoke | test_vf_tx_rx_queue | passed| | vf_smoke | test_vf_jumbo_frames | n/a | | virtio_smoke| test_virtio_loopback | passed| | virtio_smoke| test_virtio_pvp | passed| +-------------+---------------------------+-------+ OS : Ubuntu 22.04.5 LTS Kernel : 5.15.0-119-generic GCC : 11.4.0-1ubuntu1~22.04.2 NIC : Ethernet Controller XL710 for 40GbE QSFP+ Target : x86_64-native-linuxapp-gcc Test result details: +-------------+---------------------------+-------+ | suite | case | status| +-------------+---------------------------+-------+ | asan_smoke | test_rxtx_with_ASan_enable| passed| | pf_smoke | test_pf_jumbo_frames | passed| | pf_smoke | test_pf_rss | passed| | pf_smoke | test_pf_tx_rx_queue | passed| | vf_smoke | test_vf_rss | passed| | vf_smoke | test_vf_tx_rx_queue | passed| | vf_smoke | test_vf_jumbo_frames | n/a | | virtio_smoke| test_virtio_loopback | passed| | virtio_smoke| test_virtio_pvp | passed| +-------------+---------------------------+-------+ DPDK STV team