In the Linux kernel, the following vulnerability has been resolved:
powercap: intel_rapl: Fix a NULL pointer dereference
A NULL pointer dereference is triggered when probing the MMIO RAPL driver on platforms with CPU ID not listed in intel_rapl_common CPU model list.
This is because the intel_rapl_common module still probes on such platforms even if 'defaults_msr' is not set after commit 1488ac990ac8 ("powercap: intel_rapl: Allow probing without CPUID match"). Thus the MMIO RAPL rp->priv->defaults is NULL when registering to RAPL framework.
Fix the problem by adding sanity check to ensure rp->priv->rapl_defaults is always valid.
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 | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | Dec 5, 2024 | May 1, 2024 |
| Suse | — | Upgrade kernel-kvmsmall-develUpgrade kernel-source-azureUpgrade kernel-64kbUpgrade kernel-source-vanillaUpgrade kernel-kvmsmall-vdsoUpgrade kernel-docs-htmlUpgrade kernel-default-develUpgrade kernel-64kb-extraUpgrade kernel-azureUpgrade kernel-default-livepatchUpgrade kernel-azure-extraUpgrade kernel-zfcpdumpUpgrade kernel-azure-vdsoUpgrade kernel-azure-develUpgrade kernel-obs-buildUpgrade kernel-macrosUpgrade kernel-devel-azureUpgrade kernel-default-extraUpgrade reiserfs-kmp-defaultUpgrade kernel-sourceUpgrade kernel-syms-azureUpgrade kernel-obs-qaUpgrade kernel-64kb-develUpgrade kernel-kvmsmallUpgrade kernel-develUpgrade kernel-default-vdsoUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-syms | Dec 5, 2025 | Feb 3, 2025 |
| Ubuntu | — | Upgrade linux-image-oracleUpgrade linux-image-6.8.0-35-generic-64kUpgrade linux-image-lowlatencyUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-1008-azure-fdeUpgrade linux-image-generic-lpaeUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1005-raspiUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-35-lowlatencyUpgrade linux-image-lowlatency-64kUpgrade linux-image-awsUpgrade linux-image-6.8.0-1006-oracle-64kUpgrade linux-image-6.8.0-1006-oemUpgrade linux-image-6.8.0-1004-gkeUpgrade linux-image-kvmUpgrade linux-image-ibmUpgrade linux-image-oem-24.04Upgrade linux-image-genericUpgrade linux-image-6.8.0-1009-awsUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-ibm-classicUpgrade linux-image-gcpUpgrade linux-image-6.8.0-35-genericUpgrade linux-image-virtualUpgrade linux-image-oem-24.04aUpgrade linux-image-azureUpgrade linux-image-6.8.0-1008-azureUpgrade linux-image-6.8.0-1006-oracleUpgrade linux-image-6.8.0-1008-gcpUpgrade linux-image-6.8.0-1006-ibmUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-35-lowlatency-64kUpgrade linux-image-gkeUpgrade linux-image-generic-64kUpgrade linux-image-raspiUpgrade linux-image-oracle-64k | Jul 1, 2024 | May 1, 2024 |
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