|SUCCESS|dpdk|f9c4124c49| intel-Functional
sys_stv at intel.com
sys_stv at intel.com
Fri May 29 13:08:07 CEST 2026
Test-Label: intel-Functional
Test-Status: SUCCESS
_Functional PASS_
DPDK git repo: dpdk
commit f9c4124c49b6e63e8156a2a89a8fad692cc70413
Author: Stephen Hemminger <stephen at networkplumber.org>
Date: Wed Apr 8 09:16:17 2026 -0700
ip_frag: randomize hash seed
Both ipv4_frag_hash() and ipv6_frag_hash() use CRC32 (x86/ARM)
or jhash with a fixed, publicly known prime seed (0xeaad8405).
An attacker who can send crafted IP fragments can precompute hash
collisions, causing all fragments to land in the same bucket.
After bucket_entries concurrent flows collide, new flows are dropped.
Fix by using a random hash seed added at table creation time.
Fixes: 416707812c03 ("ip_frag: refactor reassembly code into a proper library")
Cc: stable at dpdk.org
Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
Acked-by: Konstantin Ananyev <konstantin.ananyev at huawei.com>
Smoke-Testing Summary : 31 Case Done, 31 Successful, 0 Failures
OS : Ubuntu 24.04.4 LTS
Kernel : 6.8.0-71-generic
GCC : 13.3.0-6ubuntu2~24.04.1
NIC : Ethernet Controller XL710 for 40GbE QSFP+
Target : x86_64-native-linuxapp-gcc
Test result details:
+-----------------+---------------------------------------------------+-------+
| suite | case | status|
+-----------------+---------------------------------------------------+-------+
| checksum_offload| test_do_not_insert_checksum_on_the_transmit_packet| passed|
| checksum_offload| test_hardware_checksum_check_ip_rx | passed|
| checksum_offload| test_hardware_checksum_check_ip_tx | passed|
| checksum_offload| test_hardware_checksum_check_l4_rx | passed|
| checksum_offload| test_hardware_checksum_check_l4_tx | passed|
| checksum_offload| test_insert_checksum_on_the_transmit_packet | passed|
| checksum_offload| test_rx_checksum_valid_flags | passed|
| checksum_offload| test_checksum_offload_with_vlan | n/a |
| dual_vlan | test_dual_vlan_priority_rxtx | passed|
| dual_vlan | test_vlan_filter_config | passed|
| dual_vlan | test_vlan_filter_table | passed|
| dual_vlan | test_vlan_insert_config | passed|
| dual_vlan | test_vlan_random_test | passed|
| dual_vlan | test_vlan_strip_config | passed|
| dual_vlan | test_vlan_synthetic_test | passed|
| dual_vlan | test_vlan_tpid_config | passed|
| dual_vlan | test_vlan_stripq_config | n/a |
| jumboframes | test_jumboframes_bigger_jumbo | passed|
| jumboframes | test_jumboframes_jumbo_jumbo | passed|
| jumboframes | test_jumboframes_jumbo_nojumbo | passed|
| jumboframes | test_jumboframes_normal_jumbo | passed|
| jumboframes | test_jumboframes_normal_nojumbo | passed|
| rxtx_offload | test_rxoffload_port_all | passed|
| rxtx_offload | test_rxoffload_port_cmdline | passed|
| rxtx_offload | test_txoffload_port | passed|
| rxtx_offload | test_txoffload_port_all | passed|
| rxtx_offload | test_txoffload_port_checksum | passed|
| rxtx_offload | test_txoffload_port_cmdline | passed|
| rxtx_offload | test_txoffload_port_multi_segs | passed|
| rxtx_offload | test_txoffload_queue | passed|
| rxtx_offload | test_rxoffload_queue | n/a |
+-----------------+---------------------------------------------------+-------+
DPDK STV team
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