CVE-2026-63806 KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned()

🗓️ 19 Jul 2026 12:02:10Reported by GoogleType

osv

osv🔗 osv.dev👁 3 Views

KVM replaces BUG_ON in ioeventfd datamatch with get_unaligned to fix unaligned access.

Reporter	Title	Published	Views	Family All 10
ATTACKERKB	CVE-2026-63806	19 Jul 202612:02	–	attackerkb
CVE	CVE-2026-63806	19 Jul 202612:02	–	cve
Cvelist	CVE-2026-63806 KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned()	19 Jul 202612:02	–	cvelist
EUVD	EUVD-2026-45472	19 Jul 202612:02	–	euvd
NVD	CVE-2026-63806	19 Jul 202612:16	–	nvd
OSV	DEBIAN-CVE-2026-63806	19 Jul 202612:16	–	osv
OSV	UBUNTU-CVE-2026-63806	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61122	19 Jul 202600:00	–	ptsecurity
SUSE CVE	SUSE CVE-2026-63806	19 Jul 202617:34	–	susecve
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-63806	19 Jul 202600:00	–	nessus

Source	Link
git	www.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
git	www.git.kernel.org/stable/c/5c87b47374682f69686068ad0a7779365a527b1c
git	www.git.kernel.org/stable/c/5da9b1a87ec7cc3489c27016313524769f12d9e0
git	www.git.kernel.org/stable/c/bf89e3738480d33cd515b4a18900e8443d40cd2e
git	www.git.kernel.org/stable/c/f1edbed787ba67988ed34e0132ca128b052b6ce8
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63806.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-63806

20 Jul 2026 03:46Current

5.4Medium risk

Vulners AI Score5.4

CVSS 3.17.1

EPSS0.00176

kernel virtualization ioeventfd datamatch unaligned access get unaligned bug on