Veille CVE
CVE-2026-64106
9.0 CritiqueDescription
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.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 9.0 Critique | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H |
Faiblesses (CWE)
Références
- https://git.kernel.org/stable/c/0680f511926589206f81f57f76ce131d7741a316 Patch
- https://git.kernel.org/stable/c/1716b7fea2ead941a0dfac06c4504a3437cdf00d Patch
- https://git.kernel.org/stable/c/8bcd15b690a390241179516af1b6ae49ebfd9d95 Patch
- https://git.kernel.org/stable/c/9ce754ed8e7ab4e3999767ce1505f85c449ccb07 Patch
- https://git.kernel.org/stable/c/b94538186a3eae3763b8f96dacd610920a865aa7 Patch
- https://git.kernel.org/stable/c/dab9f93251b2c86a033de6098d0c73afddd55d4a Patch