CVE-2026-64520

UNKNOWN 0.0

firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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)

Vendor	linux
Product	linux
Ecosystems	Linux Kernel
Industries	Technology
Published	Jul 25, 2026

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Affected Versions

Linux / Linux

ba85c644ac8dc37d9b01a3332c2f142cb4d46954 < f39bc7ebe75e2186b417a024a7f7e2fd4cc7eb95 ba85c644ac8dc37d9b01a3332c2f142cb4d46954 < 79d95c02ae0a95e6e80e8e92b7ca74ecee02854f ba85c644ac8dc37d9b01a3332c2f142cb4d46954 < 3974ea1938406f9bfa7c1f48d4e43533f447bb08

Linux / Linux

6.12

References

NVD ↗ CVE.org ↗ EPSS Data ↗

git.kernel.org: https://git.kernel.org/stable/c/f39bc7ebe75e2186b417a024a7f7e2fd4cc7eb95 git.kernel.org: https://git.kernel.org/stable/c/79d95c02ae0a95e6e80e8e92b7ca74ecee02854f git.kernel.org: https://git.kernel.org/stable/c/3974ea1938406f9bfa7c1f48d4e43533f447bb08