CVE-2026-90364
ACPI: processor: Unregister cpufreq notifier on init failure
CVE-2026-90364 is fixed in 74 products on 1 platform, first by DEBIAN-CVE-2026-90364, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0021
10th percentile
In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: Unregister cpufreq notifier on init failure acpi_processor_driver_init() registers the cpufreq policy notifier before registering the ACPI processor driver and setting up CPU hotplug state. If driver_register() or cpuhp_setup_state() fails, the error path only unregisters the ACPI processor driver and the idle driver. The cpufreq notifier remains registered even though initialization failed. Mirror the module exit path on the init failure path and unregister the cpufreq notifier when it has been registered.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel-livepatch-6.12.110-135.201 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel-livepatch-6.18.54-121.166 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.111-1 | DEBIAN-CVE-2026-90364 | Sep 23, 2026 |
| linux · Debian 14 | 7.2.6-1 | DEBIAN-CVE-2026-90364 | Sep 23, 2026 |
| linux-6.12 · Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | DEBIAN-CVE-2026-90364 | Sep 23, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
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