CVE-2025-38559
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
platform/x86/intel/pmt: fix a crashlog NULL pointer access
Usage of the intel_pmt_read() for binary sysfs, requires a pcidev. The current use of the endpoint value is only valid for telemetry endpoint usage.
Without the ep, the crashlog usage causes the following NULL pointer exception:
Augment struct intel_pmt_entry with a pointer to the pcidev to avoid the NULL pointer exception.
Detalles técnicos trazas, registros y código del informe original
BUG: kernel NULL pointer dereference, address: 0000000000000000 Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:intel_pmt_read+0x3b/0x70 [pmt_class] Code: Call Trace: <TASK> ? sysfs_kf_bin_read+0xc0/0xe0 kernfs_fop_read_iter+0xac/0x1a0 vfs_read+0x26d/0x350 ksys_read+0x6b/0xe0 __x64_sys_read+0x1d/0x30 x64_sys_call+0x1bc8/0x1d70 do_syscall_64+0x6d/0x110
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-476
Referencias
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86/intel/pmt: fix a crashlog NULL pointer access\n\nUsage of the intel_pmt_read() for binary sysfs, requires a pcidev. The\ncurrent use of the endpoint value is only valid for telemetry endpoint\nusage.\n\nWithout the ep, the crashlog usage causes the following NULL pointer\nexception:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nOops: Oops: 0000 [#1] SMP NOPTI\nRIP: 0010:intel_pmt_read+0x3b/0x70 [pmt_class]\nCode:\nCall Trace:\n <TASK>\n ? sysfs_kf_bin_read+0xc0/0xe0\n kernfs_fop_read_iter+0xac/0x1a0\n vfs_read+0x26d/0x350\n ksys_read+0x6b/0xe0\n __x64_sys_read+0x1d/0x30\n x64_sys_call+0x1bc8/0x1d70\n do_syscall_64+0x6d/0x110\n\nAugment struct intel_pmt_entry with a pointer to the pcidev to avoid\nthe NULL pointer exception."
},
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"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: platform/x86/intel/pmt: corrección de un acceso a puntero nulo en el registro de fallos. El uso de intel_pmt_read() para sistemas binarios sysfs requiere un pcidev. El uso actual del valor del endpoint solo es válido para el uso de endpoints de telemetría. Sin el ep, el uso del registro de fallos provoca la siguiente excepción de puntero nulo: ERROR: desreferencia de puntero nulo del kernel, dirección: 0000000000000000 ¡Uy!: ¡Uy!: 0000 [#1] SMP NOPTI RIP: 0010:intel_pmt_read+0x3b/0x70 [pmt_class] Código: Seguimiento de llamadas: ? Aumente la estructura intel_pmt_entry con un puntero a pcidev para evitar la excepción del puntero NULL."
}
],
"lastModified": "2026-06-17T09:17:06.570",
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