CVE-2026-64477 x86,fs/resctrl: Prevent out-of-bounds access while offlining CPU when SNC enabled

🗓️ 25 Jul 2026 08:51:39Reported by GoogleType

osv

osv🔗 osv.dev👁 5 Views

Fix out-of-bounds access during offlining CPU in resctrl when SNC is enabled.

Reporter	Title	Published	Views	Family All 13
ATTACKERKB	CVE-2026-64477	25 Jul 202608:51	–	attackerkb
CVE	CVE-2026-64477	25 Jul 202608:51	–	cve
Cvelist	CVE-2026-64477 x86,fs/resctrl: Prevent out-of-bounds access while offlining CPU when SNC enabled	25 Jul 202608:51	–	cvelist
Debian CVE	CVE-2026-64477	25 Jul 202608:51	–	debiancve
EUVD	EUVD-2026-48821	25 Jul 202608:51	–	euvd
NVD	CVE-2026-64477	25 Jul 202610:17	–	nvd
OSV	BELL-CVE-2026-64477	28 Jul 202606:04	–	osv
OSV	DEBIAN-CVE-2026-64477	25 Jul 202610:17	–	osv
OSV	UBUNTU-CVE-2026-64477	27 Jul 202600:00	–	osv
Positive Technologies	PT-2026-64698	25 Jul 202600:00	–	ptsecurity

Source	Link
git	www.git.kernel.org/stable/c/58c5ec23b1a238eb75cb0aba6f69d8f9e68ef0b2
git	www.git.kernel.org/stable/c/be1567992417dc92133e74126de7a6066c825ac9
git	www.git.kernel.org/stable/c/ebc300b7ee0c669fa76a7a8858298ff32e296103
git	www.git.kernel.org/stable/c/fc16126cc11d9f507130bf84ab137ee0938c900e
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64477.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-64477
git	www.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

27 Jul 2026 04:03Current

5.7Medium risk

Vulners AI Score5.7

EPSS0.00176

linux kernel resctrl cpu offlining numa rmid state limbo handler