Disclosure summary
An issue was discovered in the Linux kernel before 5.9. arch/x86/kvm/svm/sev.c allows attackers to cause a denial of service (soft lockup) by triggering destruction of a large SEV VM (which requires unregistering many encrypted regions), aka CID-7be74942f184.
Source-reported weakness categories
NVD-CWE-noinfo
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2020-36311
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| linux | linux_kernel | * {"versionEndExcluding":"5.9.0"} |
| debian | debian_linux | 9.0 |
| debian | debian_linux | 10.0 |
Original records & references
- NIST NVD record
- CVE Program record
- cdn.kernel.org — Release Notes, Vendor Advisory
- git.kernel.org — Patch, Vendor Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- www.debian.org — Third Party Advisory
- cdn.kernel.org — Release Notes, Vendor Advisory
- git.kernel.org — Patch, Vendor Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- www.debian.org — Third Party Advisory
PUBLISHED 2021-04-06T20:15:13-04:00
MODIFIED 2026-10-08T17:17:29-04:00
INGESTED 2026-10-10T20:50:20-04:00