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Vulnerabilities CVE-2026-64520

CVE-2026-64520

None
Open
TLP:CLEAR

firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies

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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)

Details

EPSS Score
0.13%

3.1th percentile

Confidence
90%
Published
Jul 25, 2026
Last Modified
Jul 25, 2026
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