What’s Vulnerable › Vulnerabilities

CVE-2026-98474: s390/pci: Fix missing device lock in zpci_report_status()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: s390/pci: Fix missing device lock in zpci_report_status() When pdev is non-NULL, zpci_report_status() accesses the device's driver. To get a consistent state matching the recovery, the device lock needs to be held. Do so by expanding the existing device lock critical section. The lock only needs to be held when the pdev is non-NULL, so extract the pdev-specific reporting into a helper function which also adds a lockdep assertion to detect calls without the device lock held.

Affected products

• Linux kernel: 6.14 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0261aef4b15efcee2860ab857e5cb05e9bfa47b0
• https://git.kernel.org/stable/c/1b957d5c2f737cda731cb1a1b71a7524d54538f2
• https://git.kernel.org/stable/c/743a8458978d13d84a1cf74bcd29b9959a75d3a0

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