CVE-2022-50473
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: Init completion before kobject_init_and_add()
In cpufreq_policy_alloc(), it will call uninitialed completion in cpufreq_sysfs_release() when kobject_init_and_add() fails. And that will cause a crash such as the following page fault in complete:
Detalles técnicos trazas, registros y código del informe original
BUG: unable to handle page fault for address: fffffffffffffff8 [..] RIP: 0010:complete+0x98/0x1f0 [..] Call Trace: kobject_put+0x1be/0x4c0 cpufreq_online.cold+0xee/0x1fd cpufreq_add_dev+0x183/0x1e0 subsys_interface_register+0x3f5/0x4e0 cpufreq_register_driver+0x3b7/0x670 acpi_cpufreq_init+0x56c/0x1000 [acpi_cpufreq] do_one_initcall+0x13d/0x780 do_init_module+0x1c3/0x630 load_module+0x6e67/0x73b0 __do_sys_finit_module+0x181/0x240 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.16%
- Percentil entre todas las CVEs puntuadas: 4
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-908
Referencias
- https://git.kernel.org/stable/c/3cdd91a9163248935720927531066b74f57aa43b
- https://git.kernel.org/stable/c/5c51054896bcce1d33d39fead2af73fec24f40b6
- https://git.kernel.org/stable/c/8fb4c98f20dfca1237de2e3dfdbe78d156784fd3
- https://git.kernel.org/stable/c/d88540acfc7a17079021d866de914112c396edb1
- https://git.kernel.org/stable/c/e379b88a8f8cffc99b318e028705ed9e3da0e1e0
- https://git.kernel.org/stable/c/e7c0c943ed675b66d4bbb16c51c6a3bb58da047e
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: Init completion before kobject_init_and_add()\n\nIn cpufreq_policy_alloc(), it will call uninitialed completion in\ncpufreq_sysfs_release() when kobject_init_and_add() fails. And\nthat will cause a crash such as the following page fault in complete:\n\nBUG: unable to handle page fault for address: fffffffffffffff8\n[..]\nRIP: 0010:complete+0x98/0x1f0\n[..]\nCall Trace:\n kobject_put+0x1be/0x4c0\n cpufreq_online.cold+0xee/0x1fd\n cpufreq_add_dev+0x183/0x1e0\n subsys_interface_register+0x3f5/0x4e0\n cpufreq_register_driver+0x3b7/0x670\n acpi_cpufreq_init+0x56c/0x1000 [acpi_cpufreq]\n do_one_initcall+0x13d/0x780\n do_init_module+0x1c3/0x630\n load_module+0x6e67/0x73b0\n __do_sys_finit_module+0x181/0x240\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd"
}
],
"lastModified": "2026-06-17T05:23:37.470",
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