CVE-2026-98433Low· 2.5▾ SunlitA flaw was found in the Linux kernel's KVM (Kernel-based Virtual Machine) subsystem for PowerPC architectures. When handling secure virtual machines, a failure during secure memory paging fails to release allocated device memory and intern…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 13.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
Last analysed / modified upstream
— → 2.5
none → low
0.2%
0.2% → 0.2%
A flaw was found in the Linux kernel's KVM (Kernel-based Virtual Machine) subsystem for PowerPC architectures. When handling secure virtual machines, a failure during secure memory paging fails to release allocated device memory and internal metadata. A local user can exploit this vulnerability by causing operations that trigger page-in errors, permanently consuming entries from the firmware-bounded secure memory pool. Over time, this resource exhaustion leads to a Denial of Service (DoS), rendering affected memory regions and virtual machines unusable.
kernel: KVM: PPC: Book3S HV: fix secure device page leak on uv_page_in() failure — rated Low by Red Hat. Released 2026-10-18, updated 2026-10-19.
Affected:
No fix planned:
Not affected:
Fix deferred
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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