In the Linux kernel, the following vulnerability has been resolved:
net/net_failover: fix txq exceeding warning
The failover txq is inited as 16 queues. when a packet is transmitted from the failover device firstly, the failover device will select the queue which is returned from the primary device if the primary device is UP and running. If the primary device txq is bigger than the default 16, it can lead to the following warning: eth0 selects TX queue 18, but real number of TX queues is 16
The warning backtrace is: [ 32.146376] CPU: 18 PID: 9134 Comm: chronyd Tainted: G E 6.2.8-1.el7.centos.x86_64 #1 [ 32.147175] Hardware name: Red Hat KVM, BIOS 1.10.2-3.el7_4.1 04/01/2014 [ 32.147730] Call Trace: [ 32.147971] <TASK> [ 32.148183] dump_stack_lvl+0x48/0x70 [ 32.148514] dump_stack+0x10/0x20 [ 32.148820] netdev_core_pick_tx+0xb1/0xe0 [ 32.149180] __dev_queue_xmit+0x529/0xcf0 [ 32.149533] ? __check_object_size.part.0+0x21c/0x2c0 [ 32.149967] ip_finish_output2+0x278/0x560 [ 32.150327] __ip_finish_output+0x1fe/0x2f0 [ 32.150690] ip_finish_output+0x2a/0xd0 [ 32.151032] ip_output+0x7a/0x110 [ 32.151337] ? __pfx_ip_finish_output+0x10/0x10 [ 32.151733] ip_local_out+0x5e/0x70 [ 32.152054] ip_send_skb+0x19/0x50 [ 32.152366] udp_send_skb.isra.0+0x163/0x3a0 [ 32.152736] udp_sendmsg+0xba8/0xec0 [ 32.153060] ? __folio_memcg_unlock+0x25/0x60 [ 32.153445] ? __pfx_ip_generic_getfrag+0x10/0x10 [ 32.153854] ? sock_has_perm+0x85/0xa0 [ 32.154190] inet_sendmsg+0x6d/0x80 [ 32.154508] ? inet_sendmsg+0x6d/0x80 [ 32.154838] sock_sendmsg+0x62/0x70 [ 32.155152] ____sys_sendmsg+0x134/0x290 [ 32.155499] ___sys_sendmsg+0x81/0xc0 [ 32.155828] ? _get_random_bytes.part.0+0x79/0x1a0 [ 32.156240] ? ip4_datagram_release_cb+0x5f/0x1e0 [ 32.156649] ? get_random_u16+0x69/0xf0 [ 32.156989] ? __fget_light+0xcf/0x110 [ 32.157326] __sys_sendmmsg+0xc4/0x210 [ 32.157657] ? __sys_connect+0xb7/0xe0 [ 32.157995] ? __audit_syscall_entry+0xce/0x140 [ 32.158388] ? syscall_trace_enter.isra.0+0x12c/0x1a0 [ 32.158820] __x64_sys_sendmmsg+0x24/0x30 [ 32.159171] do_syscall_64+0x38/0x90 [ 32.159493] entry_SYSCALL_64_after_hwframe+0x72/0xdc
Fix that by reducing txq number as the non-existent primary-dev does.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-headersUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade python-perfUpgrade kernelUpgrade kernel-tools-debuginfoUpgrade python-perf-debuginfoUpgrade bpftoolUpgrade kernel-livepatch-5.10.177-158.645Upgrade kernel-livepatch-5.15.106-64.140Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade kernel-develUpgrade perfUpgrade kernel-toolsUpgrade perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade perfUpgrade python3-perf-debuginfoUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-livepatch-6.1.23-36.46Upgrade kernel-libbpf-staticUpgrade kernel-debuginfo-common-aarch64Upgrade python3-perfUpgrade kernel-tools-develUpgrade kernel-headersUpgrade kernelUpgrade kernel-libbpfUpgrade kernel-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpf-develUpgrade perf-debuginfo | Feb 20, 2026 | Dec 30, 2025 |
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade bpftool | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 30, 2025 |
| Ubuntu | — | Upgrade linux-hwe-5.15Upgrade linux-aws-5.4Upgrade linux-awsUpgrade linux-lowlatencyUpgrade linux-realtimeUpgrade linux-fipsUpgrade linux-nvidia-tegra-5.15Upgrade linux-ibm-5.15Upgrade linux-raspiUpgrade linux-lowlatency-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-bluefieldUpgrade linux-azure-fdeUpgrade linux-gcp-5.15Upgrade linux-aws-5.15Upgrade linux-azureUpgrade linux-nvidia-tegraUpgrade linux-oracle-5.4Upgrade linux-raspi-5.4Upgrade linux-gkeUpgrade linux-xilinx-zynqmpUpgrade linux-gcpUpgrade linux-kvmUpgrade linux-hwe-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-azure-5.15Upgrade linux-aws-fipsUpgrade linux-nvidia-tegra-igxUpgrade linux-gcp-fipsUpgrade linux-azure-fipsUpgrade linux-ibmUpgrade linux-gcp-5.4Upgrade linux-azure-5.4Upgrade linux-iotUpgrade linux-oracle-5.15Upgrade linux-oracleUpgrade linux-nvidiaUpgrade linux-intel-iotgUpgrade linuxUpgrade linux-ibm-5.4Upgrade linux-intel-iot-realtimeUpgrade linux-gkeop | Jan 6, 2026 | Jan 2, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 30, 2025 |
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