In the Linux kernel, the following vulnerability has been resolved:
powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw()
The get_pd_power_uw() function can crash with a NULL pointer dereference when em_cpu_get() returns NULL. This occurs when a CPU becomes impossible during runtime, causing get_cpu_device() to return NULL, which propagates through em_cpu_get() and leads to a crash when em_span_cpus() dereferences the NULL pointer.
Add a NULL check after em_cpu_get() and return 0 if unavailable, matching the existing fallback behavior in __dtpm_cpu_setup().
[ rjw: Drop an excess empty code line ]
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 linux-6.1Upgrade linux | Sep 8, 2025 | Sep 8, 2025 |
| Suse | — | Upgrade kernel-rt-vdsoUpgrade cluster-md-kmp-azureUpgrade kernel-syms-rtUpgrade kselftests-kmp-64kbUpgrade dtb-nvidiaUpgrade gfs2-kmp-rtUpgrade kernel-kvmsmall-develUpgrade dtb-rockchipUpgrade kernel-source-rtUpgrade dtb-lgUpgrade dtb-alteraUpgrade kernel-rt_debug-vdsoUpgrade kernel-default-extraUpgrade kernel-default-vdsoUpgrade dtb-mediatekUpgrade kernel-obs-qaUpgrade kernel-rt-optionalUpgrade kernel-default-optionalUpgrade kernel-obs-buildUpgrade dtb-armUpgrade dtb-qcomUpgrade cluster-md-kmp-defaultUpgrade kernel-devel-azureUpgrade reiserfs-kmp-azureUpgrade kselftests-kmp-azureUpgrade kernel-kvmsmallUpgrade kernel-sourceUpgrade kernel-azure-optionalUpgrade kernel-default-base-rebuildUpgrade kernel-rt-develUpgrade kernel-macrosUpgrade kernel-azure-develUpgrade kernel-rt-livepatch-develUpgrade ocfs2-kmp-rtUpgrade kernel-source-vanillaUpgrade dtb-apmUpgrade kernel-azure-vdsoUpgrade kernel-zfcpdumpUpgrade dlm-kmp-64kbUpgrade kernel-debug-vdsoUpgrade kernel-rt-livepatchUpgrade kernel-source-azureUpgrade kernel-rtUpgrade kernel-kvmsmall-vdsoUpgrade kernel-syms-azureUpgrade dtb-exynosUpgrade kernel-azureUpgrade kernel-rt-extraUpgrade cluster-md-kmp-rtUpgrade dtb-amlogicUpgrade dtb-marvellUpgrade dtb-caviumUpgrade reiserfs-kmp-64kbUpgrade dtb-socionextUpgrade kernel-rt_debugUpgrade dtb-broadcomUpgrade dlm-kmp-azureUpgrade kselftests-kmp-rtUpgrade dtb-sprdUpgrade dtb-freescaleUpgrade kernel-default-develUpgrade dtb-amazonUpgrade dtb-xilinxUpgrade kernel-debugUpgrade kernel-default-livepatch-develUpgrade kernel-default-livepatchUpgrade kernel-64kb-develUpgrade dtb-hisiliconUpgrade dtb-renesasUpgrade dlm-kmp-defaultUpgrade ocfs2-kmp-azureUpgrade dtb-appleUpgrade dtb-amdUpgrade gfs2-kmp-64kbUpgrade dtb-allwinnerUpgrade gfs2-kmp-azureUpgrade kernel-devel-rtUpgrade kselftests-kmp-defaultUpgrade ocfs2-kmp-64kbUpgrade ocfs2-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade kernel-rt_debug-develUpgrade kernel-docsUpgrade kernel-default-baseUpgrade kernel-debug-develUpgrade kernel-azure-extraUpgrade gfs2-kmp-defaultUpgrade kernel-64kb-optionalUpgrade reiserfs-kmp-defaultUpgrade cluster-md-kmp-64kbUpgrade kernel-docs-htmlUpgrade kernel-64kbUpgrade kernel-defaultUpgrade dlm-kmp-rtUpgrade kernel-symsUpgrade kernel-develUpgrade kernel-64kb-extra | Dec 5, 2025 | Sep 18, 2025 |
| Ubuntu | — | Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oem-24.04Upgrade linux-image-fipsUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oem-6.14Upgrade linux-image-ibmUpgrade linux-image-lowlatency-64kUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-intel-iotgUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-6.14.0-1017-aws-64kUpgrade linux-image-6.14.0-1020-gcpUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-generic-lpaeUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-gke-64kUpgrade linux-image-generic-64kUpgrade linux-image-gkeUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-genericUpgrade linux-image-oracleUpgrade linux-image-virtualUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-lowlatencyUpgrade linux-image-lowlatency-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-azure-6.14Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-oracle-6.14Upgrade linux-image-6.8.0-100-genericUpgrade linux-image-aws-fipsUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-gkeopUpgrade linux-image-6.14.0-1017-oracle-64kUpgrade linux-image-xilinxUpgrade linux-image-fips-6.8Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-oracle-64kUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-generic-64k-6.14Upgrade linux-image-6.14.0-36-generic-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-generic-6.14Upgrade linux-image-aws-6.14Upgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-raspiUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-6.8.0-1046-awsUpgrade linux-image-6.14.0-1016-oemUpgrade linux-image-oracle-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-virtual-6.14Upgrade linux-image-gke-64k-6.8Upgrade linux-image-gcpUpgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-6.14.0-1020-gcp-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-realtimeUpgrade linux-image-raspi-realtimeUpgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-aws-64k-6.14Upgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-6.14.0-1018-raspiUpgrade linux-image-6.14.0-1017-azureUpgrade linux-image-raspi-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-gcp-6.14Upgrade linux-image-aws-64kUpgrade linux-image-realtime-6.14Upgrade linux-image-aws-64k-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-awsUpgrade linux-image-kvmUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gcp-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-6.14.0-36-genericUpgrade linux-image-xilinx-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.14.0-1017-oracleUpgrade linux-image-gke-6.8Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-raspi-6.14Upgrade linux-image-gcp-64kUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-azureUpgrade linux-image-realtime-6.8.1Upgrade linux-image-6.14.0-1016-realtimeUpgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-6.14.0-1017-awsUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-100-fips | Nov 25, 2025 | Nov 21, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 7, 2025 | Aug 19, 2025 |
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