What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-24 · updated 2026-08-11
• Weakness: CWE-476

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()")

Affected products

• Linux kernel: before 6.18.34; from 6.19 before 7.0.11; 7.1-rc1, 7.1-rc2, 7.1-rc3, 7.1-rc4 — fixed in 6.18.34, 7.0.11

How to fix

Upgrade to a fixed version: Linux kernel 6.18.34, 7.0.11. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3a74aaad047353da3344aed32e9042d4f334f926
• https://git.kernel.org/stable/c/b6b4db85c7baf0788c5e7ec61350c1ff2bb775e0
• https://git.kernel.org/stable/c/d733ed481fd20a8e7bfe5119c4e77761ba3f87ee

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