In the Linux kernel, the following vulnerability has been resolved:
ACPI: CPPC: Fix NULL pointer dereference when nosmp is used
With nosmp in cmdline, other CPUs are not brought up, leaving their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu() dereferences these NULL pointers, causing panic.
Panic backtrace:
[ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 ... [ 0.403255] [<ffffffff809a5818>] cppc_allow_fast_switch+0x6a/0xd4 ... Kernel panic - not syncing: Attempted to kill init!
[ rjw: New subject ]
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade perf6.12Upgrade kernel-modules-extra-commonUpgrade python3-perf6.12Upgrade kernel-debuginfo-common-x86_64Upgrade python3-perf-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel-libbpf-staticUpgrade bpftoolUpgrade kernelUpgrade kernel-libbpf-develUpgrade kernel-debuginfoUpgrade kernel6.12-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernel-headersUpgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-libbpf-debuginfoUpgrade kernel-livepatch-6.1.144-170.251Upgrade kernel6.12Upgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-livepatch-6.12.35-55.103Upgrade kernel-toolsUpgrade perfUpgrade kernel6.12-debuginfo-common-x86_64Upgrade python3-perfUpgrade kernel-modules-extraUpgrade perf6.12-debuginfoUpgrade kernel-libbpfUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64 | Aug 5, 2025 | Jul 3, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 4, 2025 | Jul 4, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | May 13, 2026 | Jul 3, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 3, 2025 |
| Suse | — | Upgrade dtb-amdUpgrade kernel-default-extraUpgrade dtb-allwinnerUpgrade dtb-amazonUpgrade dtb-broadcomUpgrade kernel-64kb-optionalUpgrade kernel-debug-develUpgrade kernel-source-rtUpgrade dlm-kmp-64kbUpgrade kernel-syms-azureUpgrade dtb-appleUpgrade kernel-kvmsmall-vdsoUpgrade dtb-freescaleUpgrade kernel-develUpgrade kernel-azure-extraUpgrade kernel-azure-optionalUpgrade gfs2-kmp-azureUpgrade dtb-caviumUpgrade cluster-md-kmp-azureUpgrade dtb-apmUpgrade ocfs2-kmp-defaultUpgrade kernel-default-livepatchUpgrade kernel-symsUpgrade ocfs2-kmp-rtUpgrade gfs2-kmp-64kbUpgrade kernel-docs-htmlUpgrade dtb-alteraUpgrade gfs2-kmp-rtUpgrade kernel-source-vanillaUpgrade dtb-hisiliconUpgrade kernel-default-vdsoUpgrade kernel-default-develUpgrade dtb-lgUpgrade kernel-azureUpgrade cluster-md-kmp-rtUpgrade kernel-64kbUpgrade kernel-kvmsmall-develUpgrade kernel-macrosUpgrade dtb-marvellUpgrade kernel-rt-vdsoUpgrade kernel-source-azureUpgrade dtb-exynosUpgrade kselftests-kmp-azureUpgrade kernel-devel-azureUpgrade kernel-rt-optionalUpgrade kernel-rt_debug-develUpgrade kernel-rt_debugUpgrade kernel-obs-qaUpgrade kernel-kvmsmallUpgrade kernel-debugUpgrade kernel-sourceUpgrade ocfs2-kmp-64kbUpgrade reiserfs-kmp-64kbUpgrade kernel-zfcpdumpUpgrade kselftests-kmp-64kbUpgrade reiserfs-kmp-rtUpgrade dtb-renesasUpgrade kselftests-kmp-defaultUpgrade dtb-armUpgrade dlm-kmp-azureUpgrade kernel-64kb-develUpgrade reiserfs-kmp-azureUpgrade kernel-azure-develUpgrade dtb-amlogicUpgrade kernel-rt-extraUpgrade dtb-qcomUpgrade kernel-default-base-rebuildUpgrade dtb-socionextUpgrade kernel-rt_debug-vdsoUpgrade kernel-docsUpgrade kernel-rt-develUpgrade kernel-devel-rtUpgrade gfs2-kmp-defaultUpgrade reiserfs-kmp-defaultUpgrade kernel-default-baseUpgrade cluster-md-kmp-64kbUpgrade dtb-sprdUpgrade dtb-rockchipUpgrade kernel-defaultUpgrade kernel-64kb-extraUpgrade kernel-rt-livepatch-develUpgrade cluster-md-kmp-defaultUpgrade ocfs2-kmp-azureUpgrade kernel-default-optionalUpgrade kernel-default-livepatch-develUpgrade dtb-mediatekUpgrade kernel-rt-livepatchUpgrade kselftests-kmp-rtUpgrade kernel-rtUpgrade dtb-nvidiaUpgrade dlm-kmp-rtUpgrade dlm-kmp-defaultUpgrade kernel-syms-rtUpgrade kernel-obs-buildUpgrade kernel-debug-vdsoUpgrade kernel-azure-vdsoUpgrade dtb-xilinx | Dec 5, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-6.14.0-1012-azureUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-kvmUpgrade linux-image-generic-64k-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-awsUpgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-fipsUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-gcp-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.14.0-1014-raspiUpgrade linux-image-oracle-6.14Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.14.0-1013-oracleUpgrade linux-image-6.14.0-32-genericUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-virtualUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-gkeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oracleUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-generic-lpaeUpgrade linux-image-azure-6.14Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-generic-64k-6.14Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-realtimeUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-oem-6.14Upgrade linux-image-oem-24.04bUpgrade linux-image-6.14.0-1012-oemUpgrade linux-image-aws-fips-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-xilinx-6.8Upgrade linux-image-azureUpgrade linux-image-aws-64kUpgrade linux-image-realtime-6.14Upgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-6.14.0-1013-aws-64kUpgrade linux-image-6.14.0-1016-gcp-64kUpgrade linux-image-6.14.0-1012-realtimeUpgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-nvidiaUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-1046-awsUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-gcp-6.14Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-raspiUpgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-oem-22.04dUpgrade linux-image-generic-6.14Upgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-raspi-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-oem-24.04cUpgrade linux-image-ibmUpgrade linux-image-oem-24.04aUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-gke-64kUpgrade linux-image-aws-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-azure-lts-24.04Upgrade linux-image-oracle-64k-6.14Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1046-azureUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-aws-64k-6.14Upgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-gcp-fipsUpgrade linux-image-gcpUpgrade linux-image-aws-64k-6.8Upgrade linux-image-6.14.0-32-generic-64kUpgrade linux-image-6.14.0-1013-oracle-64kUpgrade linux-image-aws-6.14Upgrade linux-image-6.14.0-1016-gcpUpgrade linux-image-gcp-64kUpgrade linux-image-oracle-6.8Upgrade linux-image-xilinxUpgrade linux-image-oem-24.04Upgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-6.8Upgrade linux-image-gke-64k-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-genericUpgrade linux-image-raspi-realtimeUpgrade linux-image-raspi-6.14Upgrade linux-image-6.14.0-1013-awsUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-fips-6.8Upgrade linux-image-virtual-6.14Upgrade linux-image-gkeopUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-oem-22.04bUpgrade linux-image-ibm-classicUpgrade linux-image-virtual-6.8Upgrade linux-image-azure-6.8 | Jul 7, 2025 | Jul 3, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 16, 2025 | Jul 3, 2025 |
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