CVE-2026-64179 Linux CVE debrief

Who should care

Linux kernel users and administrators should review and apply patches for this vulnerability. They should also monitor Linux kernel updates and apply patches promptly. Additionally, they should consider implementing compensating controls for memory leak vulnerabilities. The vulnerability has a medium priority for Linux kernel users and administrators.

Technical summary

A potential memory leak vulnerability was found in the Linux kernel's wwan iosm ipc_imem_init() function. The memory allocated in ipc_protocol_init() was not freed on error paths, which could lead to memory leaks. This vulnerability affects Linux kernel users and administrators who need to review and apply patches. The ipc_imem_init() function is part of the wwan iosm module, and its fix involves calling ipc_protocol_deinit() in error paths.

Defensive priority

Medium priority for Linux kernel users and administrators

Recommended defensive actions

• Review and apply patches for this vulnerability
• Monitor Linux kernel updates and apply patches promptly
• Consider implementing compensating controls for memory leak vulnerabilities
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide limited information about this vulnerability. Further review of Linux kernel documentation and source code may be necessary to fully understand the vulnerability. The memory allocated in ipc_protocol_init() is not freed on error paths, which could lead to memory leaks. Affected Linux kernel users should verify their deployments and review official advisories for patch guidance. The ipc_imem_init() function is part of the wwan iosm module, and its fix involves calling ipc_protocol_deinit() in error paths.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.