CVE-2025-68752
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-05

Last updated on: 2026-01-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: iavf: Implement settime64 with -EOPNOTSUPP ptp_clock_settime() assumes every ptp_clock has implemented settime64(). Stub it with -EOPNOTSUPP to prevent a NULL dereference. The fix is similar to commit 329d050bbe63 ("gve: Implement settime64 with -EOPNOTSUPP").
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Meta Information
Published
2026-01-05
Last Modified
2026-01-08
Generated
2026-06-16
AI Q&A
2026-01-05
EPSS Evaluated
2026-06-14
NVD
CVE-2025-68752
EUVD
EUVD-2026-0894
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability involves the Linux kernel's iavf driver where the function ptp_clock_settime() assumes that every ptp_clock has implemented the settime64() function. However, if settime64() is not implemented, this can lead to a NULL pointer dereference. The fix was to stub settime64() with an error code (-EOPNOTSUPP) to prevent this NULL dereference.

Impact Analysis

The vulnerability can cause a NULL pointer dereference in the Linux kernel, which may lead to system instability or crashes when ptp_clock_settime() is called on a ptp_clock without settime64() implemented.

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