CVE-2025-21814ptp: Ensure info->enable callback is always set
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from d94ba80ebbea17f036cecb104398fbcd788aa742 before fdc1e72487781dd7705bcbe30878bee7d5d1f3e8; from d94ba80ebbea17f036cecb104398fbcd788aa742 before 9df3a9284f39bfd51a9f72a6a165c79e2aa5066b; from d94ba80ebbea17f036cecb104398fbcd788aa742 before 1334c64a5d1de6666e0c9f984db6745083df1eb4; from d94ba80ebbea17f036cecb104398fbcd788aa742 before 5d1041c76de656f9f8d5a192218039a9acf9bd00; from d94ba80ebbea17f036cecb104398fbcd788aa742 before 81846070cba17125a866e8023c01d3465b153339; from d94ba80ebbea17f036cecb104398fbcd788aa742 before 8441aea46445252df5d2eed6deb6d5246fc24002; from d94ba80ebbea17f036cecb104398fbcd788aa742 before 755caf4ee1c615ee5717862e427124370f46b1f3; from d94ba80ebbea17f036cecb104398fbcd788aa742 before fd53aa40e65f518453115b6f56183b0c201db26b | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.0 before 6.1.129; from 6.2 before 6.6.78; from 6.7 before 6.12.14; from 6.13 before 6.13.3 | NVD |
References
- https://git.kernel.org/stable/c/fdc1e72487781dd7705bcbe30878bee7d5d1f3e8
- https://git.kernel.org/stable/c/9df3a9284f39bfd51a9f72a6a165c79e2aa5066b
- https://git.kernel.org/stable/c/1334c64a5d1de6666e0c9f984db6745083df1eb4
- https://git.kernel.org/stable/c/5d1041c76de656f9f8d5a192218039a9acf9bd00patch
- https://git.kernel.org/stable/c/81846070cba17125a866e8023c01d3465b153339patch
- https://git.kernel.org/stable/c/8441aea46445252df5d2eed6deb6d5246fc24002patch
- https://git.kernel.org/stable/c/755caf4ee1c615ee5717862e427124370f46b1f3patch
- https://git.kernel.org/stable/c/fd53aa40e65f518453115b6f56183b0c201db26bpatch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.