CVE-2026-45960
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
hfsplus: return error when node already exists in hfs_bnode_create
When hfs_bnode_create() finds that a node is already hashed (which should not happen in normal operation), it currently returns the existing node without incrementing its reference count. This causes a reference count inconsistency that leads to a kernel panic when the node is later freed in hfs_bnode_put():
This scenario can occur when hfs_bmap_alloc() attempts to allocate a node that is already in use (e.g., when node 0's bitmap bit is incorrectly unset), or due to filesystem corruption.
Leer descripción completaMostrar menos
Returning an existing node from a create path is not normal operation.
Fix this by returning ERR_PTR(-EEXIST) instead of the node when it's already hashed. This properly signals the error condition to callers, which already check for IS_ERR() return values.
Detalles técnicos trazas, registros y código del informe original
kernel BUG at fs/hfsplus/bnode.c:676!
BUG_ON(!atomic_read(&node->refcnt))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: 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
- NVD-CWE-Other
Referencias
- https://git.kernel.org/stable/c/1ca428769cb4737a25bd32fb4d1573cc09eeaeef
- https://git.kernel.org/stable/c/2e6ff6a6fc69cc17ed10c9cb6242935d52acd52d
- https://git.kernel.org/stable/c/2e9185a42e0e237c74435fd092b7c34537c62156
- https://git.kernel.org/stable/c/507a1de58c21c95ad7c44afccaf1222d1c42246b
- https://git.kernel.org/stable/c/51838112d9c22502333c3085ca0c0d691e7093c6
- https://git.kernel.org/stable/c/7b57ada854b32310f224abd61bcfec2d5790ff0a
- https://git.kernel.org/stable/c/986455135b95f32c1f142068e451098fc751749e
- https://git.kernel.org/stable/c/d8a73cc46c8462a969a7516131feb3096f4c49d3
JSON original (NVD)
Mostrar
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