CVE-2026-64106Critical· 9.0▾ MidnightIn 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…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 49.5 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.1%
Last analysed / modified upstream
0.1% → 0.1%
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.
Linux >= 57a9a117154c93539e33161dd318e6aeb8c04efa < 1716b7fea2ead941a0dfac06c4504a3437cdf00dLinux >= 57a9a117154c93539e33161dd318e6aeb8c04efa < dab9f93251b2c86a033de6098d0c73afddd55d4aLinux >= 57a9a117154c93539e33161dd318e6aeb8c04efa < b94538186a3eae3763b8f96dacd610920a865aa7Linux >= 57a9a117154c93539e33161dd318e6aeb8c04efa < 0680f511926589206f81f57f76ce131d7741a316Linux >= 57a9a117154c93539e33161dd318e6aeb8c04efa < 8bcd15b690a390241179516af1b6ae49ebfd9d95Linux >= 57a9a117154c93539e33161dd318e6aeb8c04efa < 9ce754ed8e7ab4e3999767ce1505f85c449ccb07Linux 4.12Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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