In the Linux kernel, the following vulnerability has been resolved:
x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper
Since
923f3a2b48bd ("x86/resctrl: Query LLC monitoring properties once during boot")
resctrl_cpu_detect() has been moved from common CPU initialization code to the vendor-specific BSP init helper, while Hygon didn't put that call in their code.
This triggers a division by zero fault during early booting stage on our machines with X86_FEATURE_CQM* supported, where get_rdt_mon_resources() tries to calculate mon_l3_config with uninitialized boot_cpu_data.x86_cache_occ_scale.
Add the missing resctrl_cpu_detect() in the Hygon BSP init helper.
[ bp: Massage commit message. ]
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perfUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade perfUpgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-headersUpgrade perf-debuginfoUpgrade kernelUpgrade kernel-livepatch-5.15.191-132.213Upgrade kernel-tools-develUpgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.10.242-239.961 | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade perf6.12Upgrade kernel6.12-libbpf-develUpgrade kernel6.12-libbpfUpgrade perf-debuginfoUpgrade perfUpgrade kernel6.12-modules-extraUpgrade kernel6.12-tools-debuginfoUpgrade kernel-livepatch-6.12.46-66.121Upgrade kernel-headersUpgrade kernel-tools-develUpgrade python3-perf6.12-debuginfoUpgrade bpftool6.12-debuginfoUpgrade kernel-libbpf-debuginfoUpgrade kernel6.12-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade kernel6.12-debuginfo-common-aarch64Upgrade bpftool6.12Upgrade kernel-libbpf-develUpgrade kernel-modules-extra-commonUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-toolsUpgrade python3-perfUpgrade bpftool-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel-debuginfoUpgrade kernel6.12-headersUpgrade kernel6.12-tools-develUpgrade kernel-livepatch-6.1.150-174.273Upgrade kernel6.12Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-libbpfUpgrade python3-perf-debuginfoUpgrade kernel6.12-libbpf-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade bpftoolUpgrade kernel6.12-toolsUpgrade kernel-develUpgrade kernel6.12-develUpgrade python3-perf6.12Upgrade kernel-tools-debuginfoUpgrade kernel-modules-extraUpgrade kernel-debuginfo-common-aarch64 | Sep 30, 2025 | Sep 5, 2025 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Sep 25, 2025 | Sep 25, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade python3-perfUpgrade kernel-toolsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-tools-libs | Dec 12, 2025 | Dec 11, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernelUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade bpftool | Jan 15, 2026 | Jan 6, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perf | Dec 12, 2025 | Dec 11, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | Nov 11, 2025 | Sep 5, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 5, 2025 |
| Suse | — | Upgrade kselftests-kmp-azureUpgrade dtb-socionextUpgrade dtb-exynosUpgrade dtb-nvidiaUpgrade cluster-md-kmp-64kbUpgrade kernel-azure-optionalUpgrade dtb-broadcomUpgrade kernel-rt_debug-develUpgrade kernel-source-azureUpgrade kernel-rt-optionalUpgrade dlm-kmp-64kbUpgrade dtb-alteraUpgrade kernel-source-vanillaUpgrade dtb-freescaleUpgrade kernel-source-rtUpgrade dtb-marvellUpgrade kernel-debug-vdsoUpgrade kernel-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-docs-htmlUpgrade dtb-appleUpgrade dtb-allwinnerUpgrade dtb-caviumUpgrade gfs2-kmp-azureUpgrade kernel-azure-develUpgrade kernel-64kbUpgrade kernel-default-develUpgrade dtb-sprdUpgrade kselftests-kmp-64kbUpgrade kernel-64kb-extraUpgrade kernel-obs-buildUpgrade ocfs2-kmp-defaultUpgrade kernel-azure-extraUpgrade kernel-azure-vdsoUpgrade kernel-default-livepatchUpgrade kernel-azureUpgrade kernel-kvmsmall-vdsoUpgrade kernel-default-vdsoUpgrade kernel-sourceUpgrade dtb-amazonUpgrade kernel-rt-livepatch-develUpgrade gfs2-kmp-defaultUpgrade kernel-default-baseUpgrade kernel-syms-rtUpgrade ocfs2-kmp-64kbUpgrade kernel-rt_debugUpgrade kernel-rt-extraUpgrade kernel-rt-vdsoUpgrade dtb-lgUpgrade reiserfs-kmp-rtUpgrade dlm-kmp-rtUpgrade kernel-default-base-rebuildUpgrade dtb-hisiliconUpgrade kernel-zfcpdumpUpgrade kernel-default-optionalUpgrade kernel-devel-rtUpgrade gfs2-kmp-64kbUpgrade kselftests-kmp-rtUpgrade dlm-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kselftests-kmp-defaultUpgrade kernel-develUpgrade ocfs2-kmp-azureUpgrade kernel-rt_debug-vdsoUpgrade dtb-armUpgrade kernel-defaultUpgrade kernel-debugUpgrade kernel-rt-develUpgrade kernel-kvmsmall-develUpgrade kernel-syms-azureUpgrade kernel-debug-develUpgrade dtb-rockchipUpgrade dtb-mediatekUpgrade dtb-apmUpgrade kernel-docsUpgrade kernel-default-livepatch-develUpgrade dtb-xilinxUpgrade dtb-amlogicUpgrade cluster-md-kmp-defaultUpgrade kernel-rt-livepatchUpgrade kernel-kvmsmallUpgrade kernel-64kb-develUpgrade dtb-renesasUpgrade reiserfs-kmp-defaultUpgrade cluster-md-kmp-rtUpgrade gfs2-kmp-rtUpgrade cluster-md-kmp-azureUpgrade dtb-amdUpgrade kernel-macrosUpgrade kernel-devel-azureUpgrade kernel-64kb-optionalUpgrade kernel-symsUpgrade kernel-default-extraUpgrade dtb-qcomUpgrade dlm-kmp-azureUpgrade reiserfs-kmp-azureUpgrade kernel-obs-qa | Dec 5, 2025 | Oct 15, 2025 |
| Ubuntu | — | Upgrade linux-image-oracle-5.15Upgrade linux-image-oem-20.04cUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-lowlatencyUpgrade linux-image-oem-22.04cUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-kvm-5.15Upgrade linux-image-generic-lpaeUpgrade linux-image-lowlatency-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-5.15.0-1049-nvidia-tegra-rtUpgrade linux-image-5.15.0-1091-raspiUpgrade linux-image-5.15.0-1080-gkeopUpgrade linux-image-5.15.0-1097-awsUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.15.0-1101-azureUpgrade linux-image-gkeop-6.8Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-5.15.0-163-lowlatencyUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-5.15.0-163-generic-lpaeUpgrade linux-image-azure-lts-24.04Upgrade linux-image-azure-5.15Upgrade linux-image-generic-64k-6.8Upgrade linux-image-aws-lts-22.04Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-5.15.0-1093-gkeUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-azure-fips-6.8Upgrade linux-image-fips-6.8Upgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-5.15.0-1096-realtimeUpgrade linux-image-gke-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-raspiUpgrade linux-image-gcp-fipsUpgrade linux-image-ibmUpgrade linux-image-nvidiaUpgrade linux-image-virtual-6.8Upgrade linux-image-realtime-6.8.1Upgrade linux-image-azureUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-gke-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-163-fipsUpgrade linux-image-xilinx-6.8Upgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-aws-fipsUpgrade linux-image-5.15.0-1094-oracleUpgrade linux-image-5.15.0-1038-nvidia-tegra-igx-rtUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-aws-6.8Upgrade linux-image-genericUpgrade linux-image-nvidia-tegraUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-nvidia-64kUpgrade linux-image-generic-5.15Upgrade linux-image-5.15.0-1102-azureUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-azure-lts-22.04Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-generic-6.8Upgrade linux-image-fipsUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-realtime-5.15Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-oem-20.04bUpgrade linux-image-generic-64k-5.15Upgrade linux-image-intelUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-nvidia-5.15Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-raspi-5.15Upgrade linux-image-aws-fips-5.15Upgrade linux-image-oem-20.04dUpgrade linux-image-azure-fipsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-ibm-classicUpgrade linux-image-oem-22.04bUpgrade linux-image-gke-64kUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-xilinxUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-gcpUpgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-5.15.0-1091-ibmUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-virtual-5.15Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-oracleUpgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-oem-20.04Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-azure-fips-5.15Upgrade linux-image-lowlatency-5.15Upgrade linux-image-gcp-5.15Upgrade linux-image-awsUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-aws-64k-5.15Upgrade linux-image-5.15.0-1097-aws-fipsUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-raspi-nolpaeUpgrade linux-image-raspi-realtimeUpgrade linux-image-5.15.0-1089-kvmUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-gkeUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1097-aws-64kUpgrade linux-image-5.15.0-1092-nvidiaUpgrade linux-image-5.15.0-1049-nvidia-tegraUpgrade linux-image-5.15.0-1038-nvidia-tegra-igxUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-5.15.0-1089-intel-iot-realtimeUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-5.15.0-1097-gcpUpgrade linux-image-5.15.0-1092-nvidia-lowlatencyUpgrade linux-image-5.15.0-1092-intel-iotgUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-aws-64kUpgrade linux-image-oracle-6.8Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-aws-5.15Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-5.15.0-1097-gcp-fipsUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-kvmUpgrade linux-image-ibm-5.15Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-fips-5.15Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-5.15.0-163-lowlatency-64kUpgrade linux-image-virtualUpgrade linux-image-nvidia-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-azure-cvmUpgrade linux-image-5.15.0-1101-azure-fipsUpgrade linux-image-realtimeUpgrade linux-image-gcp-6.8Upgrade linux-image-5.15.0-163-generic-64kUpgrade linux-image-5.15.0-1061-xilinx-zynqmpUpgrade linux-image-gkeop-5.15Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-5.15.0-163-generic | Dec 5, 2025 | Sep 5, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 7, 2025 | Sep 5, 2025 |
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