What’s Vulnerable › Vulnerabilities

CVE-2025-40298: gve: Implement settime64 with -EOPNOTSUPP

• Severity: unknown
• 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: 2025-12-08 · updated 2026-10-14

Description

In the Linux kernel, the following vulnerability has been resolved: gve: Implement settime64 with -EOPNOTSUPP ptp_clock_settime() assumes every ptp_clock has implemented settime64(). Stub it with -EOPNOTSUPP to prevent a NULL dereference.

Affected products

• Linux kernel: 6.17 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/329d050bbe63c2999f657cf2d3855be11a473745
• https://git.kernel.org/stable/c/c9efb03ff4fae0bc7e5ef3323c3aab599cb4c88a

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