In the Linux kernel, the following vulnerability has been resolved:
RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()
The function divides number of online CPUs by num_core_siblings, and later checks the divider by zero. This implies a possibility to get and divide-by-zero runtime error. Fix it by moving the check prior to division. This also helps to save one indentation level.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Sep 25, 2025 | Sep 25, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade bpftoolUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel | Dec 12, 2025 | Dec 11, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-abi-stablelists | Jan 15, 2026 | Dec 11, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernelUpgrade bpftoolUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Feb 3, 2026 | Dec 11, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | Oct 14, 2025 | Sep 11, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 11, 2025 |
| Suse | — | Upgrade kernel-azure-optionalUpgrade dtb-broadcomUpgrade gfs2-kmp-azureUpgrade kernel-obs-buildUpgrade kernel-64kb-extraUpgrade dtb-caviumUpgrade cluster-md-kmp-64kbUpgrade dtb-alteraUpgrade kernel-docs-htmlUpgrade kernel-azure-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-vdsoUpgrade kernel-rtUpgrade kernel-64kbUpgrade kernel-default-livepatchUpgrade dtb-marvellUpgrade kernel-azure-develUpgrade kernel-rt_debug-develUpgrade kernel-source-vanillaUpgrade dtb-appleUpgrade kselftests-kmp-64kbUpgrade kernel-syms-rtUpgrade kernel-rt_debug-vdsoUpgrade kernel-source-rtUpgrade kernel-default-baseUpgrade kernel-syms-azureUpgrade dtb-amdUpgrade kernel-azure-extraUpgrade dtb-lgUpgrade kselftests-kmp-azureUpgrade dlm-kmp-rtUpgrade kernel-rt_debugUpgrade dtb-sprdUpgrade kernel-rt-extraUpgrade dlm-kmp-defaultUpgrade ocfs2-kmp-64kbUpgrade reiserfs-kmp-64kbUpgrade dtb-amazonUpgrade kernel-azureUpgrade dlm-kmp-64kbUpgrade kernel-default-develUpgrade kernel-source-azureUpgrade reiserfs-kmp-rtUpgrade dtb-freescaleUpgrade dtb-amlogicUpgrade kernel-debug-vdsoUpgrade kernel-devel-azureUpgrade dtb-socionextUpgrade gfs2-kmp-defaultUpgrade kernel-rt-optionalUpgrade gfs2-kmp-rtUpgrade kernel-kvmsmallUpgrade kernel-defaultUpgrade dtb-mediatekUpgrade kernel-default-extraUpgrade kernel-default-livepatch-develUpgrade dtb-renesasUpgrade dtb-qcomUpgrade kernel-sourceUpgrade kernel-rt-livepatchUpgrade kernel-kvmsmall-develUpgrade kernel-docsUpgrade kernel-develUpgrade kselftests-kmp-rtUpgrade kselftests-kmp-defaultUpgrade cluster-md-kmp-azureUpgrade dtb-apmUpgrade cluster-md-kmp-rtUpgrade reiserfs-kmp-azureUpgrade kernel-obs-qaUpgrade kernel-macrosUpgrade kernel-devel-rtUpgrade kernel-default-vdsoUpgrade kernel-debugUpgrade dtb-rockchipUpgrade ocfs2-kmp-azureUpgrade kernel-64kb-develUpgrade ocfs2-kmp-defaultUpgrade kernel-zfcpdumpUpgrade kernel-default-optionalUpgrade kernel-default-base-rebuildUpgrade kernel-64kb-optionalUpgrade ocfs2-kmp-rtUpgrade gfs2-kmp-64kbUpgrade kernel-symsUpgrade dlm-kmp-azureUpgrade cluster-md-kmp-defaultUpgrade dtb-allwinnerUpgrade dtb-nvidiaUpgrade dtb-armUpgrade dtb-hisiliconUpgrade reiserfs-kmp-defaultUpgrade kernel-rt-develUpgrade dtb-exynosUpgrade kernel-debug-develUpgrade dtb-xilinx | Dec 5, 2025 | Oct 15, 2025 |
| Ubuntu | — | Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-lowlatency-6.8Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-ibmUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-5.15.0-1089-intel-iot-realtimeUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-aws-fipsUpgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-1092-intel-iotgUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-gkeopUpgrade linux-image-nvidiaUpgrade linux-image-5.15.0-1094-oracleUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-5.15.0-1091-ibmUpgrade linux-image-generic-5.15Upgrade linux-image-aws-lts-22.04Upgrade linux-image-azure-fips-5.15Upgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-5.15.0-1092-nvidiaUpgrade linux-image-5.15.0-1096-realtimeUpgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-lowlatency-5.15Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-gke-64kUpgrade linux-image-azure-lts-22.04Upgrade linux-image-5.15.0-1102-azureUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-5.15.0-1091-raspiUpgrade linux-image-oem-20.04bUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-5.15.0-1080-gkeopUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-5.15.0-1049-nvidia-tegra-rtUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-oem-22.04Upgrade linux-image-5.15.0-1061-xilinx-zynqmpUpgrade linux-image-5.15.0-163-genericUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-ibm-5.15Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-generic-64k-5.15Upgrade linux-image-gke-5.15Upgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-ibm-classicUpgrade linux-image-oracleUpgrade linux-image-gkeop-6.8Upgrade linux-image-virtualUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-1097-gcp-fipsUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-5.15.0-163-generic-lpaeUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-tegraUpgrade linux-image-gkeUpgrade linux-image-aws-fips-5.15Upgrade linux-image-fipsUpgrade linux-image-5.15.0-1089-kvmUpgrade linux-image-5.15.0-163-lowlatency-64kUpgrade linux-image-lowlatencyUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-gcp-5.15Upgrade linux-image-genericUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-aws-64k-5.15Upgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-kvm-5.15Upgrade linux-image-intelUpgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-5.15.0-1093-gkeUpgrade linux-image-5.15.0-1038-nvidia-tegra-igx-rtUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-virtual-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-oracle-5.15Upgrade linux-image-5.15.0-163-generic-64kUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-gcpUpgrade linux-image-azure-cvmUpgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-raspiUpgrade linux-image-oracle-64kUpgrade linux-image-oem-20.04cUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-gke-6.8Upgrade linux-image-kvmUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-fips-5.15Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-5.15.0-1097-aws-fipsUpgrade linux-image-5.15.0-1049-nvidia-tegraUpgrade linux-image-raspi-realtimeUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-ibm-6.8Upgrade linux-image-fips-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-generic-64kUpgrade linux-image-realtime-6.8.1Upgrade linux-image-xilinxUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-aws-64kUpgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-5.15.0-163-lowlatencyUpgrade linux-image-5.15.0-163-fipsUpgrade linux-image-5.15.0-1101-azureUpgrade linux-image-5.15.0-1097-gcpUpgrade linux-image-5.15.0-1038-nvidia-tegra-igxUpgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-nvidia-64kUpgrade linux-image-intel-iotgUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-aws-6.8Upgrade linux-image-5.15.0-1092-nvidia-lowlatencyUpgrade linux-image-gkeop-5.15Upgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-nvidia-5.15Upgrade linux-image-gke-64k-6.8Upgrade linux-image-azure-5.15Upgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-raspi-6.8Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-oem-22.04bUpgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-azure-fips-6.8Upgrade linux-image-azureUpgrade linux-image-aws-fips-6.8Upgrade linux-image-aws-5.15Upgrade linux-image-5.15.0-1101-azure-fipsUpgrade linux-image-5.15.0-1097-awsUpgrade linux-image-xilinx-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-azure-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-aws-lts-24.04Upgrade linux-image-awsUpgrade linux-image-generic-6.8Upgrade linux-image-oem-20.04dUpgrade linux-image-5.15.0-1097-aws-64kUpgrade linux-image-raspi-5.15Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-realtimeUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-virtual-5.15Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-realtime-5.15Upgrade linux-image-oracle-6.8Upgrade linux-image-virtual-hwe-22.04 | Dec 5, 2025 | Sep 11, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 19, 2025 | Sep 11, 2025 |
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