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CVE-2026-92493

cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active

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)
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015
Version < baf5a7fd3f3e2f4297b42b249f4f4f63214f44c0
Status affected
Version 14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015
Version < ba6ce23d17db3d114adf13909a9002f1eedcf183
Status affected
Version 14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015
Version < 8d31bb1451643f328db0cea0e21e63ef54b4faf2
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.1
Status affected
Version 0
Version < 6.1
Status unaffected
Version <= 6.18.*
Version 6.18.52
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.063
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/baf5a7fd3f3e2f4297b42b249f4f4f63214f44c0
https://git.kernel.org/stable/c/ba6ce23d17db3d114adf13909a9002f1eedcf183
https://git.kernel.org/stable/c/8d31bb1451643f328db0cea0e21e63ef54b4faf2