{"cve":"CVE-2025-21814","nvd":{"published":"2025-02-27T20:16:03.973","modified":"2026-10-15T02:17:37.010","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/1334c64a5d1de6666e0c9f984db6745083df1eb4","https://git.kernel.org/stable/c/5d1041c76de656f9f8d5a192218039a9acf9bd00","https://git.kernel.org/stable/c/755caf4ee1c615ee5717862e427124370f46b1f3","https://git.kernel.org/stable/c/81846070cba17125a866e8023c01d3465b153339","https://git.kernel.org/stable/c/8441aea46445252df5d2eed6deb6d5246fc24002"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2025-21814","score":0.00263,"percentile":0.17999,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}