In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Validate framework notification message layout Framework… (CVE-2026-64081)
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.
AI Analysis
Technical Summary
The Linux kernel vulnerability CVE-2026-64081 concerns the ARM FFA firmware notification message layout validation. Framework notifications carry indirect messages in a shared RX buffer, and prior to the fix, the kernel did not properly validate the offset and size of these messages. This could allow malformed firmware data to cause out-of-bounds memory reads or trigger oversized memory allocations by misusing kmemdup() and UUID parsing paths. The patch enforces validation of offset and size, rejects zero-length payloads, and ensures payloads start at the UUID field rather than within the message header, mitigating potential memory safety issues.
Potential Impact
If exploited, this vulnerability could lead to out-of-bounds memory reads or excessive memory allocation within the kernel due to malformed firmware data. This may result in kernel instability or potential information disclosure. However, there is no indication of known exploits in the wild at this time.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. Users and administrators should apply the official kernel updates that include this patch to ensure the vulnerability is remediated. Since this is not a cloud service, manual patching is required. Patch status is not explicitly confirmed in the provided data; verify with the Linux kernel vendor advisory for the latest remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Validate framework notification message layout Framework… (CVE-2026-64081)
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.
CVSS v3.1
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel vulnerability CVE-2026-64081 concerns the ARM FFA firmware notification message layout validation. Framework notifications carry indirect messages in a shared RX buffer, and prior to the fix, the kernel did not properly validate the offset and size of these messages. This could allow malformed firmware data to cause out-of-bounds memory reads or trigger oversized memory allocations by misusing kmemdup() and UUID parsing paths. The patch enforces validation of offset and size, rejects zero-length payloads, and ensures payloads start at the UUID field rather than within the message header, mitigating potential memory safety issues.
Potential Impact
If exploited, this vulnerability could lead to out-of-bounds memory reads or excessive memory allocation within the kernel due to malformed firmware data. This may result in kernel instability or potential information disclosure. However, there is no indication of known exploits in the wild at this time.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. Users and administrators should apply the official kernel updates that include this patch to ensure the vulnerability is remediated. Since this is not a cloud service, manual patching is required. Patch status is not explicitly confirmed in the provided data; verify with the Linux kernel vendor advisory for the latest remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jv9h-h3cq-mm9x
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64081"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27a92a4a8d598912c223
Added to database: 07/19/2026, 19:38:17 UTC
Last enriched: 07/19/2026, 19:51:55 UTC
Last updated: 07/20/2026, 19:41:22 UTC
Views: 13
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