CVE-2026-64101

kernel: fwctl: pds: Validate RPC input size before parsing

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Severity

Moderate

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · July 19, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's fwctl component. Insufficient validation of the Remote Procedure Call (RPC) input buffer size in the pdsfc_fw_rpc() function can lead to an out-of-bounds read. A local attacker could exploit this vulnerability by providing a specially crafted RPC input, potentially leading to information disclosure or a denial of service.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-125 · Out-of-bounds Read