CVE-2025-40298
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 versions
Linux kernel versions
6.17
and later are affected. Fixed in
6.17.8,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-40298 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/329d050bbe63c2999f657cf2d3855be11a473745
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PatchKernel patch commithttps://git.kernel.org/stable/c/c9efb03ff4fae0bc7e5ef3323c3aab599cb4c88a
Frequently asked questions
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What is CVE-2025-40298?
CVE-2025-40298 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.17 onward and has been patched in 6.17.8 and 6.18. CVE-2025-40298 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-40298?
Yes — CVE-2025-40298 has been patched. Fixed versions include 6.17.8 and 6.18. If you are running Linux kernel 6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-40298 actively exploited?
No — CVE-2025-40298 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.