In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Do not initialize SNP for ioctl(SNP_COMMIT)
Sashiko notes:
> if SEV initialization fails and KVM is actively running normal VMs, could a > userspace process trigger this code path via /dev/sev ioctls (e.g., > SEV_PDH_GEN) and zero out MSR_VM_HSAVE_PA globally? Would the next VMRUN > execution for an active VM trigger a general protection fault and crash the > host?
The SNP_COMMIT command does not require the firmware to be in any particular state. Skip initializing it if it was previously uninitialized.
The SEV-SNP firmware specification doc 56860 does not mention SNP_COMMIT in Table 5 as a command that is allowed in the UNINIT state, but it is in fact allowed and a future documentation update will reflect that.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.12 | Jul 28, 2026 | Jul 28, 2026 |
| Redhat_linux | — | No solution exists | Jul 29, 2026 | Jul 25, 2026 |
| Ubuntu | — | Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-gke-7.0Upgrade linux-image-nvidiaUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-nvidia-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-oem-26.04bUpgrade linux-image-gke-64k-7.0Upgrade linux-image-genericUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-7.0.0-1013-oemUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-gkeUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-realtime-7.0Upgrade linux-image-gcp-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-oem-26.04aUpgrade linux-image-7.0.0-1012-awsUpgrade linux-image-gke-64kUpgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-oracleUpgrade linux-image-raspiUpgrade linux-image-gcp-64kUpgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-oem-26.04Upgrade linux-image-ibmUpgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-azure-lts-26.04Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-generic-64kUpgrade linux-image-azureUpgrade linux-image-realtimeUpgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-generic-7.0Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-oracle-64kUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-oem-7.0Upgrade linux-image-raspi-realtimeUpgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-virtualUpgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-gcpUpgrade linux-image-azure-7.0Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-oracle-7.0Upgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-realtime-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-64k-7.0Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-7.0.0-31-genericUpgrade linux-image-awsUpgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-raspi-7.0Upgrade linux-image-gcp-64k-7.0 | Sep 14, 2026 | Sep 7, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 3, 2026 | Jul 25, 2026 |
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