# CVE-2026-80643: EDAC/igen6: Fix call trace due to missing release()

CVE-2026-80643 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-80643, released August 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-80643
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 28, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80643

## Description

In the Linux kernel, the following vulnerability has been resolved:  EDAC/igen6: Fix call trace due to missing release()  When unloading the igen6_edac driver, there is a call trace:    Device '(null)' does not have a release() function, it is broken and must be fixed.   See Documentation/core-api/kobject.rst.   WARNING: drivers/base/core.c:2567 at device_release+0x84/0x90, CPU#5: rmmod/127209   ...   RIP: 0010:device_release+0x84/0x90   Call Trace:    <TASK>    kobject_put+0x8c/0x220    put_device+0x17/0x30    igen6_unregister_mcis+0xa2/0xe0 [igen6_edac]    igen6_remove+0x82/0xb0 [igen6_edac]    ...  Fix the call trace by providing empty release() functions for the memory controller devices.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.115-2 | [DEBIAN-CVE-2026-80643](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80643.md) | Aug 29, 2026 |
| Linux | linux Debian 14 | 7.1.5-1 | [DEBIAN-CVE-2026-80643](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80643.md) | Aug 29, 2026 |

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Data as of 2026-11-08T00:53:09Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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