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In the Linux kernel, the following vulnerability has been resolved:
net/sched: sch_qfq: Fix race condition on qfq_aggregate
A race condition can occur when 'agg' is modified in qfq_change_agg (called during qfq_enqueue) while other threads access it concurrently. For example, qfq_dump_class may trigger a NULL dereference, and qfq_delete_class may cause a use-after-free.
This patch addresses the issue by:
1. Moved qfq_destroy_class into the critical section.
2. Added sch_tree_lock protection to qfq_dump_class and qfq_dump_class_stats.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-debug-modules-extraUpgrade bpftoolUpgrade kernel-docUpgrade kernel-zfcpdump-modulesUpgrade kernel-debug-modulesUpgrade kernel-zfcpdump-coreUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdumpUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade perfUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-headersUpgrade kernel-cross-headersUpgrade kernel-modules-extraUpgrade kernel-debugUpgrade kernel-modulesUpgrade kernelUpgrade kernel-debug-develUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-coreUpgrade kernel-develUpgrade kernel-zfcpdump-develUpgrade kernel-debug-core | Sep 10, 2025 | Sep 2, 2025 |
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.242-239.961Upgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-livepatch-4.14.355-280.684Upgrade python-perfUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.15.191-132.213Upgrade python-perf-debuginfoUpgrade kernelUpgrade perfUpgrade kernel-toolsUpgrade kernel-headersUpgrade perf-debuginfoUpgrade kernel-tools-devel | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel6.12-libbpf-develUpgrade perf-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel-livepatch-6.12.40-63.114Upgrade kernelUpgrade perf6.12Upgrade kernel-modules-extra-commonUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-debuginfo-common-x86_64Upgrade kernel6.12-libbpfUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-libbpf-staticUpgrade kernel6.12Upgrade bpftool6.12-debuginfoUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-tools-debuginfoUpgrade kernel-headersUpgrade kernel-libbpf-develUpgrade python3-perf6.12-debuginfoUpgrade kernel-livepatch-6.1.147-172.266Upgrade kernel6.12-debuginfoUpgrade bpftool6.12Upgrade kernel6.12-headersUpgrade kernel-modules-extraUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade kernel6.12-develUpgrade kernel-libbpfUpgrade kernel-develUpgrade python3-perf6.12Upgrade kernel6.12-debuginfo-common-x86_64Upgrade perfUpgrade kernel-libbpf-staticUpgrade kernel6.12-toolsUpgrade kernel-tools-develUpgrade bpftoolUpgrade kernel6.12-tools-develUpgrade kernel-libbpf-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-debuginfoUpgrade bpftool-debuginfoUpgrade python3-perfUpgrade perf6.12-debuginfoUpgrade kernel-tools | Sep 16, 2025 | Jul 28, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 31, 2025 | Jul 31, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel | Nov 12, 2025 | Nov 6, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-abi-stablelistsUpgrade kernelUpgrade kernel-tools-libsUpgrade bpftoolUpgrade python3-perfUpgrade kernel-tools | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernelUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libs | Jan 15, 2026 | Nov 6, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernel-toolsUpgrade bpftool | Feb 3, 2026 | Jan 30, 2026 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Sep 5, 2025 | Jul 28, 2025 |
| Redhat_linux | — | No solution existsUpgrade kernel | Jul 31, 2025 | Jul 28, 2025 |
| Rocky_linux | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-debug-develUpgrade kernel-debuginfoUpgrade bpftoolUpgrade kernel-develUpgrade python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade python3-perf-debuginfoUpgrade kernel-tools-libs-develUpgrade kernel-debug-modulesUpgrade kernel-tools-debuginfoUpgrade kernel-debug-coreUpgrade kernel-debug-modules-extraUpgrade kernel-debugUpgrade perfUpgrade kernel-coreUpgrade kernel-debug-debuginfoUpgrade kernel-modules-extraUpgrade kernel-toolsUpgrade perf-debuginfoUpgrade kernel-modulesUpgrade bpftool-debuginfo | Feb 5, 2026 | Sep 8, 2025 |
| Suse | — | Upgrade kernel-rt-livepatch-develUpgrade dtb-marvellUpgrade gfs2-kmp-defaultUpgrade cluster-md-kmp-defaultUpgrade kernel-debug-develUpgrade kernel-64kb-develUpgrade kernel-rt-optionalUpgrade dtb-hisiliconUpgrade kernel-rt_debugUpgrade kernel-source-rtUpgrade kernel-docs-htmlUpgrade dtb-renesasUpgrade dtb-nvidiaUpgrade kernel-docsUpgrade dtb-appleUpgrade kernel-debugUpgrade kernel-default-baseUpgrade kernel-rt-extraUpgrade dtb-armUpgrade kernel-64kb-optionalUpgrade dtb-amdUpgrade kernel-debug-vdsoUpgrade kernel-azure-vdsoUpgrade kernel-default-livepatch-develUpgrade dlm-kmp-rtUpgrade kernel-preempt-develUpgrade kernel-azure-extraUpgrade kernel-kvmsmall-vdsoUpgrade kselftests-kmp-defaultUpgrade dlm-kmp-defaultUpgrade kernel-azureUpgrade dtb-socionextUpgrade kernel-defaultUpgrade dtb-broadcomUpgrade kernel-syms-rtUpgrade cluster-md-kmp-64kbUpgrade kernel-rt_debug-vdsoUpgrade ocfs2-kmp-64kbUpgrade ocfs2-kmp-azureUpgrade reiserfs-kmp-64kbUpgrade reiserfs-kmp-defaultUpgrade kselftests-kmp-rtUpgrade kernel-default-manUpgrade reiserfs-kmp-rtUpgrade dlm-kmp-azureUpgrade dtb-sprdUpgrade kernel-64kb-extraUpgrade kernel-source-vanillaUpgrade kernel-obs-qaUpgrade gfs2-kmp-64kbUpgrade kernel-sourceUpgrade dtb-caviumUpgrade dlm-kmp-64kbUpgrade gfs2-kmp-azureUpgrade gfs2-kmp-rtUpgrade kernel-symsUpgrade kernel-rtUpgrade kernel-azure-develUpgrade kernel-default-extraUpgrade ocfs2-kmp-rtUpgrade kernel-rt_debug-develUpgrade kernel-64kbUpgrade dtb-lgUpgrade dtb-allwinnerUpgrade dtb-xilinxUpgrade kernel-syms-azureUpgrade dtb-alteraUpgrade ocfs2-kmp-defaultUpgrade kselftests-kmp-azureUpgrade dtb-exynosUpgrade kernel-default-livepatchUpgrade kernel-azure-optionalUpgrade kernel-default-develUpgrade dtb-apmUpgrade kernel-devel-rtUpgrade kernel-develUpgrade kernel-zfcpdumpUpgrade kernel-rt-develUpgrade kernel-preemptUpgrade kernel-rt-vdsoUpgrade kernel-kvmsmallUpgrade kernel-devel-azureUpgrade kernel-default-base-rebuildUpgrade dtb-amlogicUpgrade cluster-md-kmp-azureUpgrade reiserfs-kmp-azureUpgrade dtb-rockchipUpgrade dtb-qcomUpgrade dtb-mediatekUpgrade dtb-amazonUpgrade cluster-md-kmp-rtUpgrade kselftests-kmp-64kbUpgrade kernel-macrosUpgrade kernel-kvmsmall-develUpgrade kernel-default-vdsoUpgrade dtb-freescaleUpgrade kernel-source-azureUpgrade kernel-default-optionalUpgrade kernel-obs-buildUpgrade kernel-rt-livepatch | Dec 5, 2025 | Sep 4, 2025 |
| Ubuntu | — | Upgrade linux-image-5.4.0-1154-azureUpgrade linux-image-5.4.0-1151-aws-fipsUpgrade linux-image-6.8.0-1037-oracle-64kUpgrade linux-image-5.15.0-1091-oracleUpgrade linux-image-aws-6.14Upgrade linux-image-6.14.0-1015-raspiUpgrade linux-image-5.15.0-1093-gcpUpgrade linux-image-4.15.0-1185-awsUpgrade linux-image-6.14.0-1013-realtimeUpgrade linux-image-kvm-5.4Upgrade linux-image-nvidia-tegraUpgrade linux-image-oem-20.04bUpgrade linux-image-oem-20.04Upgrade linux-image-generic-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-oracle-lts-20.04Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-6.14.0-1013-oemUpgrade linux-image-azure-fips-4.15Upgrade linux-image-5.15.0-1093-aws-64kUpgrade linux-image-4.15.0-2123-aws-fipsUpgrade linux-image-raspi-5.15Upgrade linux-image-6.14.0-1014-oracle-64kUpgrade linux-image-azure-5.4Upgrade linux-image-gcp-4.15Upgrade linux-image-generic-64k-6.14Upgrade linux-image-xilinx-zynqmp-5.4Upgrade linux-image-generic-lpae-5.4Upgrade linux-image-raspi-nolpaeUpgrade linux-image-6.14.0-1014-oracleUpgrade linux-image-5.15.0-1087-raspiUpgrade linux-image-intelUpgrade linux-image-4.15.0-2086-gcp-fipsUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.0-1040-azure-fdeUpgrade linux-image-5.15.0-1087-ibmUpgrade linux-image-oracle-6.14Upgrade linux-image-5.15.0-1097-azureUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-4.15.0-2102-azure-fipsUpgrade linux-image-generic-6.14Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-kvm-5.15Upgrade linux-image-5.15.0-1090-gkeUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1040-nvidia-lowlatencyUpgrade linux-image-4.15.0-1178-gcpUpgrade linux-image-4.15.0-242-genericUpgrade linux-image-oem-22.04dUpgrade linux-image-gkeUpgrade linux-image-gke-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-azureUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-raspi-6.14Upgrade linux-image-5.15.0-1046-nvidia-tegra-rtUpgrade linux-image-5.15.0-1093-awsUpgrade linux-image-oracle-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-aws-fips-5.15Upgrade linux-image-5.4.0-1151-awsUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-oracle-4.15Upgrade linux-image-gcp-fips-5.4Upgrade linux-image-azure-6.14Upgrade linux-image-5.15.0-1093-aws-fipsUpgrade linux-image-intel-iotgUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-6.14.0-1017-gcp-64kUpgrade linux-image-generic-64kUpgrade linux-image-oemUpgrade linux-image-azure-lts-22.04Upgrade linux-image-lowlatency-5.4Upgrade linux-image-realtime-6.14Upgrade linux-image-realtime-6.8.1Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-1040-azureUpgrade linux-image-lowlatency-5.15Upgrade linux-image-raspi-hwe-18.04Upgrade linux-image-gcp-6.8Upgrade linux-image-azure-fde-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.14.0-1014-awsUpgrade linux-image-6.8.0-85-generic-64kUpgrade linux-image-azure-fips-5.4Upgrade linux-image-oracle-5.15Upgrade linux-image-5.15.0-1088-nvidiaUpgrade linux-image-5.15.0-157-generic-lpaeUpgrade linux-image-5.15.0-1088-intel-iotgUpgrade linux-image-6.8.0-1040-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1088-nvidia-lowlatencyUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-genericUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-virtual-hwe-18.04Upgrade linux-image-azure-fips-5.15Upgrade linux-image-aws-fips-5.4Upgrade linux-image-aws-hweUpgrade linux-image-gke-64k-6.8Upgrade linux-image-realtimeUpgrade linux-image-generic-lpaeUpgrade linux-image-5.4.0-222-generic-lpaeUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-6.8.0-1040-nvidia-64kUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-5.15.0-157-fipsUpgrade linux-image-azure-5.15Upgrade linux-image-ibm-5.15Upgrade linux-image-4.15.0-242-lowlatencyUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-gcp-fipsUpgrade linux-image-oem-22.04Upgrade linux-image-aws-lts-18.04Upgrade linux-image-gkeopUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-2031-raspi-realtimeUpgrade linux-image-fipsUpgrade linux-image-lowlatency-6.8Upgrade linux-image-raspiUpgrade linux-image-aws-5.15Upgrade linux-image-aws-fipsUpgrade linux-image-gkeop-5.15Upgrade linux-image-nvidiaUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-oracle-5.4Upgrade linux-image-gcp-64kUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-5.4.0-1154-gcp-fipsUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-raspi-6.8Upgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-5.15.0-1057-xilinx-zynqmpUpgrade linux-image-generic-64k-5.15Upgrade linux-image-aws-64k-5.15Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1035-nvidia-tegra-igx-rtUpgrade linux-image-gcp-5.15Upgrade linux-image-oem-6.14Upgrade linux-image-nvidia-5.15Upgrade linux-image-6.14.0-33-generic-64kUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-azure-nvidia-lts-24.04Upgrade linux-image-6.8.0-1037-gke-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-generic-64k-6.8Upgrade linux-image-oem-24.04aUpgrade linux-image-6.8.0-1037-oracleUpgrade linux-image-6.14.0-33-genericUpgrade linux-image-azure-nvidia-6.8Upgrade linux-image-azure-cvmUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-1024-gkeopUpgrade linux-image-virtual-6.14Upgrade linux-image-5.4.0-1138-kvmUpgrade linux-image-aws-lts-22.04Upgrade linux-image-6.8.0-85-genericUpgrade linux-image-6.8.0-1040-aws-64kUpgrade linux-image-5.15.0-1093-gcp-fipsUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-5.15.0-1089-kvmUpgrade linux-image-4.15.0-1147-oracleUpgrade linux-image-4.15.0-1193-azureUpgrade linux-image-5.15.0-157-genericUpgrade linux-image-azure-4.15Upgrade linux-image-oracle-64k-6.14Upgrade linux-image-6.14.0-1014-aws-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-gkeop-6.8Upgrade linux-image-oem-20.04cUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-lowlatencyUpgrade linux-image-virtual-5.4Upgrade linux-image-awsUpgrade linux-image-snapdragon-5.4Upgrade linux-image-raspi2Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-1040-raspiUpgrade linux-image-aws-fips-4.15Upgrade linux-image-aws-4.15Upgrade linux-image-5.4.0-222-genericUpgrade linux-image-6.8.0-85-lowlatency-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-64kUpgrade linux-image-6.8.1-1035-realtimeUpgrade linux-image-6.8.0-1041-gcpUpgrade linux-image-5.4.0-1110-bluefieldUpgrade linux-image-5.4.0-1155-azure-fipsUpgrade linux-image-5.4.0-1154-gcpUpgrade linux-image-fips-5.15Upgrade linux-image-gke-5.15Upgrade linux-image-oem-24.04bUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-fips-5.4Upgrade linux-image-azure-fdeUpgrade linux-image-bluefield-5.4Upgrade linux-image-azure-fipsUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-1038-ibmUpgrade linux-image-5.15.0-157-lowlatencyUpgrade linux-image-5.4.0-1149-oracleUpgrade linux-image-5.15.0-1035-nvidia-tegra-igxUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.14.0-1013-azureUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-realtime-5.15Upgrade linux-image-azure-lts-24.04Upgrade linux-image-ibm-lts-20.04Upgrade linux-image-5.4.0-1134-raspiUpgrade linux-image-ibm-6.8Upgrade linux-image-azure-lts-18.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-bluefieldUpgrade linux-image-gcp-fips-4.15Upgrade linux-image-oracle-64kUpgrade linux-image-aws-5.4Upgrade linux-image-6.14.0-1017-gcpUpgrade linux-image-5.15.0-1097-azure-fipsUpgrade linux-image-4.15.0-1148-oracleUpgrade linux-image-4.15.0-1168-kvmUpgrade linux-image-gcp-lts-18.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-24.04cUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-azure-lts-20.04Upgrade linux-image-generic-5.4Upgrade linux-image-gcp-6.14Upgrade linux-image-gcp-5.4Upgrade linux-image-5.15.0-1076-gkeopUpgrade linux-image-azure-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-5.15.0-157-generic-64kUpgrade linux-image-oracleUpgrade linux-image-kvmUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-generic-6.8Upgrade linux-image-azure-nvidiaUpgrade linux-image-5.15.0-157-lowlatency-64kUpgrade linux-image-6.8.0-1025-azure-nvidiaUpgrade linux-image-5.15.0-1046-nvidia-tegraUpgrade linux-image-5.4.0-1069-xilinx-zynqmpUpgrade linux-image-raspi-realtimeUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-ibmUpgrade linux-image-6.8.0-1040-awsUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-aws-lts-20.04Upgrade linux-image-6.8.0-85-lowlatencyUpgrade linux-image-5.4.0-1097-ibmUpgrade linux-image-5.15.0-1086-intel-iot-realtimeUpgrade linux-image-5.15.0-1093-realtimeUpgrade linux-image-gke-6.8Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-5.4.0-1055-iotUpgrade linux-image-raspi-5.4Upgrade linux-image-5.4.0-1125-fipsUpgrade linux-image-aws-64k-6.14Upgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-1037-gkeUpgrade linux-image-ibm-classicUpgrade linux-image-oem-osp1Upgrade linux-image-aws-64k-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-5.4.0-222-lowlatencyUpgrade linux-image-4.15.0-1140-fipsUpgrade linux-image-virtualUpgrade linux-image-ibm-5.4Upgrade linux-image-gcpUpgrade linux-image-6.8.0-1041-gcp-64kUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.8.0-1040-nvidiaUpgrade linux-image-intel-iot-realtime-5.15 | Jul 31, 2025 | Jul 28, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 20, 2025 | Jul 28, 2025 |
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