# CVE-2023-53177: media: hi846: fix usage of pm\_runtime\_get\_if\_in\_use()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-15 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.16

## Description

In the Linux kernel, the following vulnerability has been resolved: media: hi846: fix usage of pm_runtime_get_if_in_use() pm_runtime_get_if_in_use() does not only return nonzero values when the device is in use, it can return a negative errno too. And especially during resuming from system suspend, when runtime pm is not yet up again, -EAGAIN is being returned, so the subsequent pm_runtime_put() call results in a refcount underflow. Fix system-resume by handling -EAGAIN of pm_runtime_get_if_in_use().

## 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.
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## 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/42ec6269f98edd915ee37da3c6456bb6243ea56a
- https://git.kernel.org/stable/c/c5dcd7a19f1ed8fe98384f3a9444c7c53befd74e
- https://git.kernel.org/stable/c/04fc06f6dc1592ed5d675311ac50d8fba5db62ab

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Page: https://cve.now/CVE-2023-53177
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