CVE-2026-64212

wifi: iwlwifi: mld: don't dereference a pointer before NULL checking it

MEDIUM
5.5
CVSS Score
Published: July 24, 2026 at 03:23 PM UTC
Updated: August 11, 2026 at 05:38 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.18.34v < 7.0.11v < 7.16.19 ≤ v < 7.0.111da177e4c3f41524e886b7f1b8a0c1fc7321cac27.1 rc17.1 rc27.1 rc37.1 rc4
Vendor states this is fixed in 3a74aaad047353da3344aed32e9042d4f334f926 (fixed)
Vendor states this is fixed in b6b4db85c7baf0788c5e7ec61350c1ff2bb775e0 (fixed)
Vendor states this is fixed in d733ed481fd20a8e7bfe5119c4e77761ba3f87ee (fixed)
Vendor states this is fixed in 6.18.34 (unaffected)
Vendor states this is fixed in 7.0.11 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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