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CVE-2025-21814— ptp: Ensure info->enable callback is always set

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未设置info->enable回调，导致空指针取消引用。

AI Predicted 5.5 Difficulty: Easy EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux d94ba80ebbea17f036cecb104398fbcd788aa742< fdc1e72487781dd7705bcbe30878bee7d5d1f3e8 affected
d94ba80ebbea17f036cecb104398fbcd788aa742< 9df3a9284f39bfd51a9f72a6a165c79e2aa5066b affected
d94ba80ebbea17f036cecb104398fbcd788aa742< 1334c64a5d1de6666e0c9f984db6745083df1eb4 affected
d94ba80ebbea17f036cecb104398fbcd788aa742< 5d1041c76de656f9f8d5a192218039a9acf9bd00 affected
d94ba80ebbea17f036cecb104398fbcd788aa742< 81846070cba17125a866e8023c01d3465b153339 affected
d94ba80ebbea17f036cecb104398fbcd788aa742< 8441aea46445252df5d2eed6deb6d5246fc24002 affected
d94ba80ebbea17f036cecb104398fbcd788aa742< 755caf4ee1c615ee5717862e427124370f46b1f3 affected
d94ba80ebbea17f036cecb104398fbcd788aa742< fd53aa40e65f518453115b6f56183b0c201db26b affected
… +10 more rows
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I. Basic Information for CVE-2025-21814

Vulnerability Information
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Vulnerability Title
ptp: Ensure info->enable callback is always set
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未设置info->enable回调，导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d94ba80ebbea17f036cecb104398fbcd788aa742 ~ fdc1e72487781dd7705bcbe30878bee7d5d1f3e8 -
Linux Linux 3.0 -

II. Public POCs for CVE-2025-21814

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III. Intelligence Information for CVE-2025-21814

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Patches & Fixes for CVE-2025-21814 (5)

Other References for CVE-2025-21814 (2)

Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total

CVE-2025-21805 9.8 CRITICAL RDMA/rtrs: Add missing deinit() call
CVE-2025-21796 9.8 CRITICAL nfsd: clear acl_access/acl_default after releasing them
CVE-2025-21707 9.8 CRITICAL mptcp: consolidate suboption status
CVE-2025-21748 9.8 CRITICAL ksmbd: fix integer overflows on 32 bit systems
CVE-2024-58006 9.6 CRITICAL PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()
CVE-2024-57999 8.8 HIGH powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW
CVE-2025-21735 8.8 HIGH NFC: nci: Add bounds checking in nci_hci_create_pipe()
CVE-2024-57997 8.8 HIGH wifi: wcn36xx: fix channel survey memory allocation size
CVE-2024-57995 8.8 HIGH wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()
CVE-2025-21710 8.2 HIGH tcp: correct handling of extreme memory squeeze
CVE-2025-21766 8.1 HIGH ipv4: use RCU protection in __ip_rt_update_pmtu()
CVE-2024-57973 8.1 HIGH rdma/cxgb4: Prevent potential integer overflow on 32bit
CVE-2025-21765 8.1 HIGH ipv6: use RCU protection in ip6_default_advmss()
CVE-2025-21760 8.1 HIGH ndisc: extend RCU protection in ndisc_send_skb()
CVE-2025-21762 8.1 HIGH arp: use RCU protection in arp_xmit()
CVE-2024-58010 7.8 HIGH binfmt_flat: Fix integer overflow bug on 32 bit systems
CVE-2024-58008 7.8 HIGH KEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y
CVE-2025-21764 7.8 HIGH ndisc: use RCU protection in ndisc_alloc_skb()
CVE-2025-21791 7.8 HIGH vrf: use RCU protection in l3mdev_l3_out()
CVE-2025-21763 7.8 HIGH neighbour: use RCU protection in __neigh_notify()

Showing top 20 of 177 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux