PT-2026-69493 · Linux · Linux Kernel

CVE-2026-68092

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Published

2026-08-10

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Updated

2026-09-07

None

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Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists where the jiffies clocksource is utilized during early boot before being registered. This sequence leaves the max delta raw field at zero, causing the read out to be clamped to a maximum delta of 0, which prevents time from progressing. This was observed in XEN HVM environments, resulting in long boot delays. The problem occurs within the timekeeping init() function.
Recommendations Ensure the jiffies clocksource is initialized before its first usage in the timekeeping init() function.

Exploit

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Related Identifiers

CVE-2026-68092
USN-8726-1
USN-8727-1
USN-8728-1

Affected Products

Linux Kernel