CVE-2026-64081

firmware: arm_ffa: Validate framework notification message layout

HIGH
8.4
CVSS Score
Published: July 19, 2026 at 03:39 PM UTC
Updated: September 3, 2026 at 01:34 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.4
Exploit prediction
EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.15 ≤ v < 6.18.346.15 ≤ v < 7.0.116.15 ≤ v < 7.16.19 ≤ v < 7.0.11285a5ea0f542db94c3ed11e01a71abb47d15cbf57.1 rc17.1 rc27.1 rc37.1 rc4
Vendor states this is fixed in 3c51d99449dc5a01c08a7fce6071d6721f5aac83 (fixed)
Vendor states this is fixed in 4a1cc9e96b311d2609a6f963a5e35bd4ae730d97 (fixed)
Vendor states this is fixed in 76eb90e2b03de147e12ab68ea8afd8ea0342df0a (fixed)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.18.34 (unaffected)
Vendor states this is fixed in 7.0.11 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

CVSS

8.4HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787

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