Bug 2419840 (CVE-2025-40298) - CVE-2025-40298 kernel: gve: Implement settime64 with -EOPNOTSUPP
Summary: CVE-2025-40298 kernel: gve: Implement settime64 with -EOPNOTSUPP
Keywords:
Status: NEW
Alias: CVE-2025-40298
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-08 07:02 UTC by OSIDB Bzimport
Modified: 2025-12-19 12:50 UTC (History)
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Description OSIDB Bzimport 2025-12-08 07:02:34 UTC 
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.
Comment 1 Alexander B 2025-12-10 11:00:06 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120819-CVE-2025-40298-af76@gregkh/T
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