firmware: arm_ffa: Check for NULL FF-A ID table while driver registration
Priority LOW 24CWE-476Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
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.
Why it matters now
EPSS 0.0012 1st percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.15.209, 6.1.175, 6.6.142 +4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.14 and later | 5.15.209, 6.1.175, 6.6.142, 6.12.92, 6.18.34, 7.0.11, 7.1 | Patch available | CNA |
- Linux VendorLinux Affected 5.14 and later Fixed in 5.15.209, 6.1.175, 6.6.142, 6.12.92, 6.18.34, 7.0.11, 7.1 Patch available CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.14.1 to before 5.15.209; 5.16 to before 6.1.175; 6.2 to before 6.6.142; 6.7 to before 6.12.92; 6.13 to before 6.18.34; 6.19 to before 7.0.11 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:* | 5.14 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:* | 5.14 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:* | 5.14 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:* | 5.14 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:* | 5.14 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:* | 5.14 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:* | 5.14 rc7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | 7.1 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | 7.1 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.14.1 to before 5.15.209; 5.16 to before 6.1.175; 6.2 to before 6.6.142; 6.7 to before 6.12.92; 6.13 to before 6.18.34; 6.19 to before 7.0.11 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:* Versions 5.14 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:* Versions 5.14 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:* Versions 5.14 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:* Versions 5.14 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:* Versions 5.14 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:* Versions 5.14 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:* Versions 5.14 rc7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* Versions 7.1 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.209, 6.1.175, 6.6.142, 6.12.92, 6.18.34, 7.0.11, 7.1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-64166
- 2026-10-03 Alias added: GHSA-hfhw-j953-vcq4
References
Patch 7
- https://git.kernel.org/stable/c/f98f131256beaddd51ad468e95d90d857fef12bf
- https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd
- https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0
- https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8
- https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d
- https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf
- https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be
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Sources
- CVE-2026-64166 · CVE Program
- CVE-2026-64166 · NVD
- FIRST EPSS
- GHSA-hfhw-j953-vcq4 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-64166 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences