CVE-2025-38702
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: fix potential buffer overflow in do_register_framebuffer() The current implementation may lead to buffer overflow when: 1. Unregistration creates NULL gaps in registered_fb[] 2. All array slots become occupied despite num_registered_fb < FB_MAX 3. The registration loop exceeds array bounds Add boundary check to prevent registered_fb[FB_MAX] access.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-04 16:15:38.990000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
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"id": "CVE-2025-38702",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-09-04T16:15:38.990",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Modified",
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: fix potential buffer overflow in do_register_framebuffer()\n\nThe current implementation may lead to buffer overflow when:\n1. Unregistration creates NULL gaps in registered_fb[]\n2. All array slots become occupied despite num_registered_fb < FB_MAX\n3. The registration loop exceeds array bounds\n\nAdd boundary check to prevent registered_fb[FB_MAX] access."
},
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"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfbdev: corrige un potencial desbordamiento de búfer en do_register_framebuffer()\n\nLa implementación actual puede llevar a desbordamiento de búfer cuando:\n1. La anulación del registro crea huecos NULL en registered_fb[]\n2. Todas las ranuras del array se ocupan a pesar de que num_registered_fb < FB_MAX\n3. El bucle de registro excede los límites del array\n\nAñadir una comprobación de límites para prevenir el acceso a registered_fb[FB_MAX]."
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