CVE-2025-39902
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
mm/slub: avoid accessing metadata when pointer is invalid in object_err()
object_err() reports details of an object for further debugging, such as the freelist pointer, redzone, etc. However, if the pointer is invalid, attempting to access object metadata can lead to a crash since it does not point to a valid object.
One known path to the crash is when alloc_consistency_checks() determines the pointer to the allocated object is invalid because of a freelist corruption, and calls object_err() to report it. The debug code should report and handle the corruption gracefully and not crash in the process.
Leer descripción completaMostrar menos
In case the pointer is NULL or check_valid_pointer() returns false for the pointer, only print the pointer value and skip accessing metadata.
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: 5
- 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 (2)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/0ef7058b4dc6fcef622ac23b45225db57f17b83f
- https://git.kernel.org/stable/c/1f0797f17927b5cad0fb7eced422f9a7c30a3191
- https://git.kernel.org/stable/c/3baa1da473e6e50281324ff1d332d1a07a3bb02e
- https://git.kernel.org/stable/c/7e287256904ee796c9477e3ec92b07f236481ef3
- https://git.kernel.org/stable/c/872f2c34ff232af1e65ad2df86d61163c8ffad42
- https://git.kernel.org/stable/c/b4efccec8d06ceb10a7d34d7b1c449c569d53770
- https://git.kernel.org/stable/c/dda6ec365ab04067adae40ef17015db447e90736
- https://git.kernel.org/stable/c/f66012909e7bf383fcdc5850709ed5716073fdc4
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
JSON original (NVD)
Mostrar
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}
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