# CVE-2026-92493: cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active

CVE-2026-92493 is fixed in linux on 1 platform by DEBIAN-CVE-2026-92493 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-92493
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-92493

## Description

In the Linux kernel, the following vulnerability has been resolved:  cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active  The crash issue may occur when modprobe amd_pstate_ut on intel platform.     amd_pstate_ut: 1    amd_pstate_ut_acpi_cpc_valid  success!    amd_pstate_ut: 2    amd_pstate_ut_check_enabled   success!    BUG: kernel NULL pointer dereference, address: 0000000000000080    #PF: supervisor read access in kernel mode    #PF: error_code(0x0000) - not-present page    PGD 0 P4D 0    Oops: 0000 [#1] SMP NOPTI    CPU: 0 PID: 20300 Comm: modprobe    Kdump: loaded Tainted: G O 6.6.0-0010.rc1.ctl4.x86_64 #1    Hardware name: FiberHome R2200 V5/Xeon Boards, BIOS 3.1a 02/24/2020    RIP: 0010:amd_pstate_ut_check_perf+0x141/0x280 [amd_pstate_ut]    Call Trace:     <TASK>     amd_pstate_ut_init+0x1b/0xff0 [amd_pstate_ut]     ? __pfx_amd_pstate_ut_init+0x10/0x10 [amd_pstate_ut]     do_one_initcall+0x42/0x2e0     ? kmalloc_trace+0x26/0x90     do_init_module+0x60/0x240     __se_sys_init_module+0x185/0x1c0     do_syscall_64+0x62/0x190     entry_SYSCALL_64_after_hwframe+0x76/0x7e     </TASK>  Add state detection to amd pstate driver to prevent amd_pstate_ut driver from testing on non-AMD platforms.  (ML: adjust title)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-92493](https://patchblox.com/security/data/fix/linux/debian-cve-2026-92493.md) | Sep 23, 2026 |

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Data as of 2026-11-10T13:56:55Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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