# CVE-2023-52627: linux: In the Linux kernel, the following vulnerability has been resolved:  iio: adc: ad7091r: Allow users to configure devi...

CVE-2023-52627 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52627, released March 26, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-52627
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 26, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  iio: adc: ad7091r: Allow users to configure device events  AD7091R-5 devices are supported by the ad7091r-5 driver together with the ad7091r-base driver. Those drivers declared iio events for notifying user space when ADC readings fall bellow the thresholds of low limit registers or above the values set in high limit registers. However, to configure iio events and their thresholds, a set of callback functions must be implemented and those were not present until now. The consequence of trying to configure ad7091r-5 events without the proper callback functions was a null pointer dereference in the kernel because the pointers to the callback functions were not set.  Implement event configuration callbacks allowing users to read/write event thresholds and enable/disable event generation.  Since the event spec structs are generic to AD7091R devices, also move those from the ad7091r-5 driver the base driver so they can be reused when support for ad7091r-2/-4/-8 be added.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.76-1 | [DEBIAN-CVE-2023-52627](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52627.md) | Mar 26, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.6.15-1 | [DEBIAN-CVE-2023-52627](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52627.md) | Mar 26, 2024 |
| Linux | linux Debian 14 | 6.6.15-1 | [DEBIAN-CVE-2023-52627](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52627.md) | Mar 26, 2024 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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