In the Linux kernel, the following vulnerability has been resolved:
PM: EM: Fix potential division-by-zero error in em_compute_costs()
When the device is of a non-CPU type, table[i].performance won't be initialized in the previous em_init_performance(), resulting in division by zero when calculating costs in em_compute_costs().
Since the 'cost' algorithm is only used for EAS energy efficiency calculations and is currently not utilized by other device drivers, we should add the _is_cpu_device(dev) check to prevent this division-by-zero issue.
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 |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel-libbpfUpgrade bpftoolUpgrade perf6.12-debuginfoUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12-debuginfoUpgrade kernel-livepatch-6.12.35-55.103Upgrade python3-perf6.12-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-modules-extra-commonUpgrade kernel-headersUpgrade kernel-libbpf-debuginfoUpgrade kernel6.12Upgrade bpftool-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel-libbpf-develUpgrade perf6.12Upgrade kernel-libbpf-staticUpgrade kernel-tools | Aug 5, 2025 | Jul 10, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Ubuntu | — | Upgrade linux-image-generic-64kUpgrade linux-image-oem-24.04bUpgrade linux-image-genericUpgrade linux-image-6.14.0-1014-raspiUpgrade linux-image-6.14.0-1013-awsUpgrade linux-image-6.14.0-1016-gcp-64kUpgrade linux-image-oem-24.04Upgrade linux-image-6.14.0-1013-aws-64kUpgrade linux-image-realtime-6.14Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-6.14.0-1016-gcpUpgrade linux-image-6.14.0-32-genericUpgrade linux-image-aws-64kUpgrade linux-image-oem-6.14Upgrade linux-image-oracle-6.14Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-raspi-6.14Upgrade linux-image-azure-6.14Upgrade linux-image-azureUpgrade linux-image-gcpUpgrade linux-image-oem-24.04aUpgrade linux-image-virtual-6.14Upgrade linux-image-aws-6.14Upgrade linux-image-awsUpgrade linux-image-gcp-64kUpgrade linux-image-oem-24.04cUpgrade linux-image-6.14.0-32-generic-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-generic-64k-6.14Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.14.0-1012-realtimeUpgrade linux-image-gcp-6.14Upgrade linux-image-raspiUpgrade linux-image-6.14.0-1013-oracle-64kUpgrade linux-image-virtualUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-realtimeUpgrade linux-image-oracleUpgrade linux-image-aws-64k-6.14Upgrade linux-image-oracle-64k-6.14Upgrade linux-image-generic-6.14Upgrade linux-image-6.14.0-1012-azureUpgrade linux-image-6.14.0-1012-oemUpgrade linux-image-6.14.0-1013-oracle | Jul 14, 2025 | Jul 10, 2025 |
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