CVE-2026-64520 | In the Linux kernel, the following vulnerability has been re…

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies The register-based PARTITION_INFO_GET path trusted the firmware-provided indices when copying partition descriptors into the caller buffer. Reject inconsistent counts or index progressions so the copy loop cannot write past the allocated array. (fixed cur_idx when exactly one descriptor in the first fragment)

Metadata

CVE ID: CVE-2026-64520
State: PUBLISHED
Assigner: Linux
Reserved: 2026-07-19 15:36 UTC
Published: 2026-07-25 09:14 UTC
Last updated: 2026-07-25 09:14 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

No CVSS data available.

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	ba85c644ac8dc37d9b01a3332c2f142cb4d46954 < f39bc7ebe75e2186b417a024a7f7e2fd4cc7eb95, ba85c644ac8dc37d9b01a3332c2f142cb4d46954 < 79d95c02ae0a95e6e80e8e92b7ca74ecee02854f, ba85c644ac8dc37d9b01a3332c2f142cb4d46954 < 3974ea1938406f9bfa7c1f48d4e43533f447bb08
Linux	Linux	—	6.12, 0 < 6.12, 6.18.34 ≤ 6.18., 7.0.11 ≤ 7.0. …

References (3)