CVE-2025-21898: fallo de gravedad media en Linux
ftrace: Avoid potential division by zero in function_stat_show()
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.5epss 0.2%
In the Linux kernel, the following vulnerability has been resolved:
ftrace: Avoid potential division by zero in function_stat_show()
Check whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64}
produce zero and skip stddev computation in that case.
For now don't care about rec->counter * rec->counter overflow because
rec->time * rec->time overflow will likely happen earlier.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
En el mismo producto, de las más peligrosas a las menos.
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Referencias
https://git.kernel.org/stable/c/3d738b53ed6cddb68e68c9874520a4bf846163b5https://git.kernel.org/stable/c/5b3d32f607f0478b414b16516cf27f9170cf66c8https://git.kernel.org/stable/c/746cc474a95473591853927b3a9792a2d671155bhttps://git.kernel.org/stable/c/992775227843c9376773784b8b362add44592ad7https://git.kernel.org/stable/c/9cdac46fa7e854e587eb5f393fe491b6d7a9bdf6https://git.kernel.org/stable/c/a1a7eb89ca0b89dc1c326eeee2596f263291aca3https://git.kernel.org/stable/c/ca381f60a3bb7cfaa618d73ca411610bd7fc3149https://git.kernel.org/stable/c/f58a3f8e284d0bdf94164a8e61cd4e70d337a1a3https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html