What’s Vulnerable › Vulnerabilities

CVE-2026-68134: ptp: ptp_s390: Add missing facility check

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: ptp: ptp_s390: Add missing facility check Only register the physical clock when facility 28 is installed and PTFF QAF returns that PTFF QPT is available.

Affected products

• Linux kernel: 6.13 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/545a7fdbc110c82933d448db2695abff07536f08
• https://git.kernel.org/stable/c/b3efb4744abf493c9782eae713b861a80d9bbeca
• https://git.kernel.org/stable/c/e78f1ac37afcb16cb6fef8a2c92591eab6558956

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