CVE-2026-64106

CVE CVE-2026-64106EUVD EUVD-2026-45791Published 2026-07-19T15:40:09.000ZLast changed 2026-08-05T12:39:16.000ZCVSS 9.0

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that state, but vgic_its_restore_dte() accepts it and stores the out-of-range value in dev->num_eventid_bits. Reject restored DTEs with num_eventid_bits > VITS_TYPER_IDBITS before allocating the device. This mirrors the MAPD check and prevents the restored state from reaching vgic_its_restore_itt(), where the unchecked value can be converted into an oversized scan_its_table() range.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 4.12; patch: 7.1; 57a9a117154c93539e33161dd318e6aeb8c04efa <8bcd15b690a390241179516af1b6ae49ebfd9d95; patch: 6.18.34; 57a9a117154c93539e33161dd318e6aeb8c04efa <b94538186a3eae3763b8f96dacd610920a865aa7; 57a9a117154c93539e33161dd318e6aeb8c04efa <0680f511926589206f81f57f76ce131d7741a316; 57a9a117154c93539e33161dd318e6aeb8c04efa <dab9f93251b2c86a033de6098d0c73afddd55d4a; 57a9a117154c93539e33161dd318e6aeb8c04efa <1716b7fea2ead941a0dfac06c4504a3437cdf00d; 57a9a117154c93539e33161dd318e6aeb8c04efa <9ce754ed8e7ab4e3999767ce1505f85c449ccb07; patch: 6.6.142; patch: 0; patch: 6.1.175; patch: 7.0.11; patch: 6.12.92

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

Does this concern one of your customers?

This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.

Try it for 28 days

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.