CVE-2026-64106

Katalog CVE

CVSS 9.0 · Critical EPSS 0,19%

Kerentanan pada linux kernel. Skor CVSS 3.1 9.0 (Critical) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

19 Juli 2026

Terakhir diubah

12 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

9.0 (Critical), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H · uraikan di kalkulator

EPSS (30 hari)

0,19% peluang dieksploitasi; lebih tinggi dari 8,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• 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