CVE-2025-71129
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
LoongArch: BPF: Sign extend kfunc call arguments
The kfunc calls are native calls so they should follow LoongArch calling conventions. Sign extend its arguments properly to avoid kernel panic. This is done by adding a new emit_abi_ext() helper. The emit_abi_ext() helper performs extension in place meaning a value already store in the target register (Note: this is different from the existing sign_extend() helper and thus we can't reuse it).
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: 0.13%
- Percentil entre todas las CVEs puntuadas: 2
- Fecha de la puntuación: 6/10/2026
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
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Sign extend kfunc call arguments\n\nThe kfunc calls are native calls so they should follow LoongArch calling\nconventions. Sign extend its arguments properly to avoid kernel panic.\nThis is done by adding a new emit_abi_ext() helper. The emit_abi_ext()\nhelper performs extension in place meaning a value already store in the\ntarget register (Note: this is different from the existing sign_extend()\nhelper and thus we can't reuse it)."
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"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nLoongArch: BPF: Extensión de signo de los argumentos de llamada a kfunc\n\nLas llamadas a kfunc son llamadas nativas, por lo que deben seguir las convenciones de llamada de LoongArch. Extender el signo de sus argumentos correctamente para evitar un pánico del kernel. Esto se logra añadiendo una nueva función auxiliar emit_abi_ext(). La función auxiliar emit_abi_ext() realiza la extensión in situ, lo que significa un valor ya almacenado en el registro de destino (Nota: esto es diferente de la función auxiliar sign_extend() existente y, por lo tanto, no podemos reutilizarla)."
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