A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV).
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://bugzilla.redhat.com/show_bug.cgi?id=2038940 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683412ccf61294d727ead4a73d97397396e69a6b Mailing List, Patch, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2038940 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683412ccf61294d727ead4a73d97397396e69a6b Mailing List, Patch, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.5 · linux, redhat, debianNVD modified 2026-10-14 13:17
Affected (CPE criteria) 9
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.18:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.18:rc3:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
References 11
- https://access.redhat.com/security/cve/CVE-2022-0171 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2038940 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683412ccf61294d727ead4a73d97397396e69a6b Mailing List, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html Mailing List, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5257 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2022-0171 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2038940 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683412ccf61294d727ead4a73d97397396e69a6b Mailing List, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html Mailing List, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5257 Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html