CVE-2026-64166 Details
Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Check for NULL FF-A ID table while driver registration The bus match callback assumes that every FF-A driver provides an id_table and dereferences it unconditionally. Enforce that contract at registration time so a buggy client driver cannot crash the bus during match.
A vulnerability in the Linux kernel's handling of firmware drivers using the ARM Fast Functionality Architecture (FF-A) has been addressed. The issue arose because the bus match callback expected every FF-A driver to provide an ID table, which it accessed without checking for null values. This oversight could allow a faulty driver to crash the bus during the matching process. The vulnerability affects the Linux kernel stable tree.
Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be | kernel.org | Patch |
| https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf | kernel.org | Patch |
| https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d | kernel.org | Patch |
| https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0 | kernel.org | Patch |
| https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd | kernel.org | Patch |
| https://git.kernel.org/stable/c/f98f131256beaddd51ad468e95d90d857fef12bf | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.14.1, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.142 >= 6.7, < 6.12.92 >= 6.13, < 6.18.34 >= 6.19, < 7.0.11 5.14 - 5.14 rc2 5.14 rc3 5.14 rc4 5.14 rc5 5.14 rc6 5.14 rc7 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 13, 2026 | Initial Analysis | [email protected] |
| Jul 19, 2026 | New CVE Received | kernel.org |