CVE-2026-64224

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

octeontx2-pf: fix double free in rvu_rep_rsrc_init()

rvu_rep_rsrc_init() allocates queue memory before calling

otx2_init_hw_resources(). When hardware resource setup fails,

otx2_init_hw_resources() already unwinds the partially initialized

SQ, CQ, and aura state before returning an error. The representor

error path then calls otx2_free_hw_resources() again and can free

the same resources a second time.

Fix this by splitting the cleanup labels so that a failure from

otx2_init_hw_resources() only releases queue memory. Keep the

otx2_free_hw_resources() call for failures that happen after

hardware resource initialization completed successfully.

The bug was first flagged by an experimental analysis tool we are

developing for kernel memory-management bugs while analyzing

v6.13-rc1. The tool is still under development and is not yet publicly

available. Manual inspection confirms that the bug is still

present in v7.1-rc3.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References