Threats Tagged 'ghsa-3v64-xhg6-868f'
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Threats Tagged 'ghsa-3v64-xhg6-868f'
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A vulnerability in the Linux kernel's KVM PPC Book3S HV subsystem causes a secure device page leak when uv_page_in() fails during kvmppc_svm_page_in(). This leak permanently consumes an entry from the secure memory pool, leaks memory structures, and marks the guest frame number as secure and unusable for the VM's lifetime. The issue affects POWER9/10 systems running Ultravisor/PEF and is triggered by uv_page_in() errors such as UV pool exhaustion. The problem is fixed by applying the same resource cleanup pattern used in a related function, ensuring proper release of locked pages and memory structures. Join the discussion | GCVE Database | 10/18/2026, 15:30:31 UTC Added: 10/18/2026, 16:35:58 UTC |
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