CVE-2025-71292
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
jfs: nlink overflow in jfs_rename
If nlink is maximal for a directory (-1) and inside that directory you perform a rename for some child directory (not moving from the parent), then the nlink of the first directory is first incremented and later decremented. Normally this is fine, but when nlink = -1 this causes a wrap around to 0, and then drop_nlink issues a warning.
After applying the patch syzbot no longer issues any warnings. I also ran some basic fs tests to look for any regressions.
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: 0.32%
- Percentil entre todas las CVEs puntuadas: 23
- 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
- https://git.kernel.org/stable/c/2108829a59f081e822fdab8c2cd7131deb8aa8a1
- https://git.kernel.org/stable/c/5d77c36cd4b698649f5c30c5f6c084f4f61d1880
- https://git.kernel.org/stable/c/9218dc26fd922b09858ecd3666ed57dfd8098da8
- https://git.kernel.org/stable/c/93c325746ae59709b4f9bad4e3e4761c8d566c70
- https://git.kernel.org/stable/c/a3d66089e50a6e0142f8884471f74292102ea9aa
- https://git.kernel.org/stable/c/b4330a0d0947fbdc9d445cbbeabd8cc910a8c9ca
- https://git.kernel.org/stable/c/f70fcbc2ac7c24f087a2c895c5753aa730b1e479
- https://git.kernel.org/stable/c/fe136426e30ca6debcf916fd6a141555ed9fde74
JSON original (NVD)
Mostrar
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