CVE-2026-68092

time/jiffies: Register jiffies clocksource before usage

N/A

Published: August 10, 2026 at 11:51 AM UTC

Updated: August 17, 2026 at 05:18 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

6.12.5 ≤ v < 6.12.976.13 ≤ v < 6.18.396.13 ≤ v < 7.1.46.13 ≤ v < 7.21a678f6829a8c931fae2b62e4c88dae743c839c96.12.5 6.1376031d9536a076bf023bedbdb1b4317fc801dd67

Vendor states this is fixed in 75b478096c6bbf57fe366f7f0a8cd5365043ffaa (fixed)

Vendor states this is fixed in cd25e9819620aa1325897912cfb4dd89303325fe (fixed)

Vendor states this is fixed in f24df84cbe05e4471c04ac4b921fc0340bbc7752 (fixed)

Vendor states this is fixed in fe9bdea65ba231fcfb155031628bb1e8491b5fe0 (fixed)

Vendor states this is fixed in 6.12.97 (unaffected)

Vendor states this is fixed in 6.13 (unaffected)

Vendor states this is fixed in 6.18.39 (unaffected)

Vendor states this is fixed in 7.1.4 (unaffected)

Vendor states this is fixed in 7.2 (unaffected)