CVE-2025-21814
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: ptp: Ensure info->enable callback is always set The ioctl and sysfs handlers unconditionally call the ->enable callback. Not all drivers implement that callback, leading to NULL dereferences. Example of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c. Instead use a dummy callback if no better was specified by the driver.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-02-27 20:16:03.973000
Last modified
2026-11-05 21:17:43.350000
View original CVE JSON
{
"id": "CVE-2025-21814",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-02-27T20:16:03.973",
"lastModified": "2026-11-05T21:17:43.350",
"vulnStatus": "Modified",
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nptp: Ensure info->enable callback is always set\n\nThe ioctl and sysfs handlers unconditionally call the ->enable callback.\nNot all drivers implement that callback, leading to NULL dereferences.\nExample of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c.\n\nInstead use a dummy callback if no better was specified by the driver."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ptp: Asegúrese de que la devolución de llamada info->enable esté siempre establecida Los controladores ioctl y sysfs llaman incondicionalmente a la devolución de llamada ->enable. No todos los controladores implementan esa devolución de llamada, lo que lleva a desreferencias NULL. Ejemplo de controladores afectados: ptp_s390.c, ptp_vclock.c y ptp_mock.c. En su lugar, utilice una devolución de llamada ficticia si el controlador no especificó nada mejor."
}
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