# CVE-2025-39774: linux: In the Linux kernel, the following vulnerability has been resolved:  iio: adc: rzg2l_adc: Set driver data before enab...

CVE-2025-39774 is fixed in linux on 1 platform by DEBIAN-CVE-2025-39774 (version 6.16.5-1), released September 11, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-39774
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 11, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  iio: adc: rzg2l_adc: Set driver data before enabling runtime PM  When stress-testing the system by repeatedly unbinding and binding the ADC device in a loop, and the ADC is a supplier for another device (e.g., a thermal hardware block that reads temperature through the ADC), it may happen that the ADC device is runtime-resumed immediately after runtime PM is enabled, triggered by its consumer. At this point, since drvdata is not yet set and the driver's runtime PM callbacks rely on it, a crash can occur. To avoid this, set drvdata just after it was allocated.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.16.5-1 | [DEBIAN-CVE-2025-39774](https://patchblox.com/security/data/fix/linux/debian-cve-2025-39774.md) | Sep 11, 2025 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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