CVE-2026-63807: linux kernel from 5.12 (inclusive), before 5.15.211 (exclusive), from 5.16 (inclusive), before 6.1.177 (exclusive)…

Affected technology

linux kernel · from 5.12 (inclusive), before 5.15.211 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.177 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.144 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.95 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.38 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 7.1.3 (exclusive)
linux

Linux · 9eba50f8d7fcb61774f160890f98239fa3ab68a6 to before 7b52008023b7facf40fba3ebe92449bda8ea53b9, 9eba50f8d7fcb61774f160890f98239fa3ab68a6 to before 5cab1c989f938f5e1b9a0de66486f1fc2c28479b, 9eba50f8d7fcb61774f160890f98239fa3ab68a6 to before 48b91ed7e22bb82571c34f8b80b6ecdc90a6fab8, 9eba50f8d7fcb61774f160890f98239fa3ab68a6 to before c5c29b3c268332afe67d598a034c58344540ed92, 9eba50f8d7fcb61774f160890f98239fa3ab68a6 to before 18587f9831612e24cd8f24be1ec15478feff7abc, 9eba50f8d7fcb61774f160890f98239fa3ab68a6 to before b2ae3245ea44dccaa9af676b6747476951883318, 9eba50f8d7fcb61774f160890f98239fa3ab68a6 to before ef057cbf825e03b63f6edf5980f96abf3c53089d
Linux

Linux · 5.12
Linux

Component: Not specified by the source
File: arch/x86/kvm/mmu/mmu.c, include/linux/kvm_host.h

Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.