CVE-2026-64166
Low
No strong exploitation signal.
CVSS base
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS — probability of exploitation (30 days)
0.1%
2.1th percentile
CISA KEV
Not listed
Weakness / dates
CWE-476
Published 2026-07-19 · modified 2026-08-13
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2026-07-19 — Published (NVD)
- 2026-08-13 — Last modified (NVD)
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.
Affected
References
- https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be
- https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf
- https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8
- https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d
- https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0
- https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd
- https://git.kernel.org/stable/c/f98f131256beaddd51ad468e95d90d857fef12bf