What’s Vulnerable › Vulnerabilities

CVE-2025-21924: net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle returns an error

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-01 · updated 2026-10-15
• Weakness: CWE-459

Description

In the Linux kernel, the following vulnerability has been resolved: net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle returns an error During the initialization of ptp, hclge_ptp_get_cycle might return an error and returned directly without unregister clock and free it. To avoid that, call hclge_ptp_destroy_clock to unregist and free clock if hclge_ptp_get_cycle failed.

Affected products

• Linux kernel: from 5.14.1 before 5.15.179; from 5.16 before 6.1.131; from 6.2 before 6.6.83; from 6.7 before 6.12.19; from 6.13 before 6.13.7; 5.14, 5.14-rc4, 5.14-rc5, 5.14-rc6, 5.14-rc7, 6.14-rc1 (+4) — fixed in 5.15.179, 6.1.131, 6.12.19, 6.13.7, 6.6.83

How to fix

Upgrade to a fixed version: Linux kernel 5.15.179, 6.1.131, 6.12.19, 6.13.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/21dba813d9821687a7f9aff576798ba21a859a32
• https://git.kernel.org/stable/c/2c04e507f3a5c5dc6e2b9ab37d8cdedee1ef1a37
• https://git.kernel.org/stable/c/33244e98aa9503585e585335fe2ceb4492630949
• https://git.kernel.org/stable/c/9cfc43c0e6e6a31122b4008d763a2960c206aa2d
• https://git.kernel.org/stable/c/b7365eab39831487a84e63a9638209b68dc54008
• https://git.kernel.org/stable/c/b7d8d4529984e2d4a72a6d552fb886233e8e83cb
• https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

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