# CVE-2026-64212: wifi: iwlwifi: mld: don't dereference a pointer before NULL checking it

CVE-2026-64212 is fixed in linux on 1 platform by DEBIAN-CVE-2026-64212 (version 7.0.12-1), released July 25, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-64212
- Priority: High
- CVSS: 7.1 (Important)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 24, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64212

## Description

In the Linux kernel, the following vulnerability has been resolved:  wifi: iwlwifi: mld: don't dereference a pointer before NULL checking it  In iwl_mld_remove_link, the link->fw_id is saved at the beginning of the function so we have it after we freed the link.  But the link pointer can be NULL, and is not checked when the fw_id is stored.  Fix it by simply freeing the link at the end of the function.  fFixes: 0e66a39f4f0e ("wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link()")

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.0.12-1 | [DEBIAN-CVE-2026-64212](https://patchblox.com/security/data/fix/linux/debian-cve-2026-64212.md) | Jul 25, 2026 |

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Data as of 2026-11-09T01:18:40Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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