Description (CNA)
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).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ad27ce155566f2b4400fa865859834592bd18777 before 30fd9d8c82087742168db779929d8be0459b0716; affected ad27ce155566f2b4400fa865859834592bd18777 before 4df77742e8b9a6b935bdf46f02fd0aca4d4ee7f5; affected ad27ce155566f2b4400fa865859834592bd18777 before c87938fc7d99a06a7e5477c45b4e5a4148f85d66; affected ad27ce155566f2b4400fa865859834592bd18777 before cb923ee6a80f4e604e6242a4702b59251e61a380 |
| Linux / Linux | affected 6.11; unaffected 0 before 6.11; unaffected 6.18.24 through 6.18.*; unaffected 6.19.14 through 6.19.*; unaffected 7.0.1 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.