CVE-2025-38510
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
find_vm_area() couldn't be called in atomic_context. If find_vm_area() is called to reports vm area information, kasan can trigger deadlock like:
To prevent possible deadlock while kasan reports, remove kasan_find_vm_area().
Detalles técnicos trazas, registros y código del informe original
kasan: remove kasan_find_vm_area() to prevent possible deadlock
CPU0 CPU1
vmalloc();
alloc_vmap_area();
spin_lock(&vn->busy.lock)
spin_lock_bh(&some_lock);
<interrupt occurs>
<in softirq>
spin_lock(&some_lock);
<access invalid address>
kasan_report();
print_report();
print_address_description();
kasan_find_vm_area();
find_vm_area();
spin_lock(&vn->busy.lock) // deadlock!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: 0.15%
- Percentil entre todas las CVEs puntuadas: 4
- 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/0c3566d831def922cd56322c772a7b20d8b0e0c0
- https://git.kernel.org/stable/c/2d89dab1ea6086e6cbe6fe92531b496fb6808cb9
- https://git.kernel.org/stable/c/595f78d99b9051600233c0a5c4c47e1097e6ed01
- https://git.kernel.org/stable/c/6ee9b3d84775944fb8c8a447961cd01274ac671c
- https://git.kernel.org/stable/c/8377d7744bdce5c4b3f1b58924eebd3fdc078dfc
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
JSON original (NVD)
Mostrar
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkasan: remove kasan_find_vm_area() to prevent possible deadlock\n\nfind_vm_area() couldn't be called in atomic_context. If find_vm_area() is\ncalled to reports vm area information, kasan can trigger deadlock like:\n\nCPU0 CPU1\nvmalloc();\n alloc_vmap_area();\n spin_lock(&vn->busy.lock)\n spin_lock_bh(&some_lock);\n <interrupt occurs>\n <in softirq>\n spin_lock(&some_lock);\n <access invalid address>\n kasan_report();\n print_report();\n print_address_description();\n kasan_find_vm_area();\n find_vm_area();\n spin_lock(&vn->busy.lock) // deadlock!\n\nTo prevent possible deadlock while kasan reports, remove kasan_find_vm_area()."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: kasan: eliminar kasan_find_vm_area() para evitar un posible bloqueo. No se pudo llamar a find_vm_area() en atomic_context. Si se llama a find_vm_area() para informar sobre el área de la máquina virtual, kasan puede provocar un bloqueo como: CPU0 CPU1 vmalloc(); alloc_vmap_area(); spin_lock(&vn->busy.lock) spin_lock_bh(&some_lock); spin_lock(&some_lock); kasan_report(); print_report(); print_address_description(); kasan_find_vm_area(); find_vm_area(); spin_lock(&vn->busy.lock) // ¡Bloqueo! Para evitar un posible bloqueo mientras kasan informa, elimine kasan_find_vm_area()."
}
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