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CVE-2026-64081

firmware: arm_ffa: Validate framework notification message layout PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Validate framework notification message layout Framework notifications carry an indirect message in the shared RX buffer. Validate the reported offset and size before using them, reject zero-length payloads, and ensure that any non-header payload starts at the UUID field rather than in the middle of the message header. Use the validated offset and size values for both kmemdup() and the UUID parsing path so malformed firmware data cannot drive an out-of-bounds read or an oversized allocation.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 285a5ea0f542db94c3ed11e01a71abb47d15cbf5 before 3c51d99449dc5a01c08a7fce6071d6721f5aac83; affected 285a5ea0f542db94c3ed11e01a71abb47d15cbf5 before 76eb90e2b03de147e12ab68ea8afd8ea0342df0a; affected 285a5ea0f542db94c3ed11e01a71abb47d15cbf5 before 4a1cc9e96b311d2609a6f963a5e35bd4ae730d97
Linux / Linuxaffected 6.15; unaffected 0 before 6.15; unaffected 6.18.34 through 6.18.*; unaffected 7.0.11 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References