{"id":"CVE-2025-21814","title":"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, leadi…","summary":"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, leadi…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.0, < 6.1.129","linux_kernel >= 6.2, < 6.6.78","linux_kernel >= 6.7, < 6.12.14","linux_kernel >= 6.13, < 6.13.3"],"patched":["linux_kernel 6.13.3"],"published":"2025-02-27","updated":"2026-07-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-21814","references":[{"url":"https://git.kernel.org/stable/c/1334c64a5d1de6666e0c9f984db6745083df1eb4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5d1041c76de656f9f8d5a192218039a9acf9bd00","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/755caf4ee1c615ee5717862e427124370f46b1f3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/81846070cba17125a866e8023c01d3465b153339","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8441aea46445252df5d2eed6deb6d5246fc24002","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9df3a9284f39bfd51a9f72a6a165c79e2aa5066b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fd53aa40e65f518453115b6f56183b0c201db26b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fdc1e72487781dd7705bcbe30878bee7d5d1f3e8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00253,"epssPercentile":0.17163,"ingestedAt":"2026-07-14T13:36:55.790Z","slug":"CVE-2025-21814","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `linux_kernel >= 3.0, < 6.1.129`\n- `linux_kernel >= 6.2, < 6.6.78`\n- `linux_kernel >= 6.7, < 6.12.14`\n- `linux_kernel >= 6.13, < 6.13.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.13.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}