In the Linux kernel, the following vulnerability has been resolved:
KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish
Lock all vCPUs when synchronizing and encrypting VMSAs for SNP guests, as
allowing userspace to manipulate and/or run a vCPU while its state is being
synchronized would at best corrupt vCPU state, and at worst crash the host
kernel.
Opportunistically assert that vcpu->mutex is held when synchronizing its
VMSA (the SEV-ES path already locks vCPUs).
References
Configurations
Configuration 1 (hide)
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History
28 Apr 2026, 20:34
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux
Linux linux Kernel |
|
| References | () https://git.kernel.org/stable/c/30fd9d8c82087742168db779929d8be0459b0716 - Patch | |
| References | () https://git.kernel.org/stable/c/4df77742e8b9a6b935bdf46f02fd0aca4d4ee7f5 - Patch | |
| References | () https://git.kernel.org/stable/c/c87938fc7d99a06a7e5477c45b4e5a4148f85d66 - Patch | |
| References | () https://git.kernel.org/stable/c/cb923ee6a80f4e604e6242a4702b59251e61a380 - Patch | |
| CWE | NVD-CWE-noinfo | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
27 Apr 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
24 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-24 15:16
Updated : 2026-06-17 10:34
NVD link : CVE-2026-31591
Mitre link : CVE-2026-31591
CVE.ORG link : CVE-2026-31591
JSON object : View
Products Affected
linux
- linux_kernel
CWE