CVE-2026-68092

Unknown

Last modified

CVE-2026-68092 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksource is used in early boot before it is registered, which leaves the max_delta_raw field at zero.

Description

In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksource is used in early boot before it is registered, which leaves the max_delta_raw field at zero. That causes the read out to be clamped to the max delta of 0, which means time is not making progress. Cure it by ensuring that it is initialized before its first usage in timekeeping_init().

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 1a678f6829a8c931fae2b62e4c88dae743c839c9, < fe9bdea65ba231fcfb155031628bb1e8491b5fe0; >= 76031d9536a076bf023bedbdb1b4317fc801dd67, < cd25e9819620aa1325897912cfb4dd89303325fe; >= 76031d9536a076bf023bedbdb1b4317fc801dd67, < 75b478096c6bbf57fe366f7f0a8cd5365043ffaa; >= 76031d9536a076bf023bedbdb1b4317fc801dd67, < f24df84cbe05e4471c04ac4b921fc0340bbc7752; >= 6.12.5, < 6.12.97
LinuxLinux6.13

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68092?
In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksource is used in early boot before it is registered, which leaves the max_delta_raw field at zero. That causes the read out to be clamped to the max delta of 0, which means time is not making progress. Cure it by ensuring that it is initialized before its first usage in timekeeping_init().
How severe is CVE-2026-68092?
Severity scoring for CVE-2026-68092 is pending analysis.
How do I fix CVE-2026-68092?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST