In the Linux kernel, the following vulnerability has been resolved:
KVM: SEV: Check PSC request indices against the actual size of the buffer
When processing Page State Change (PSC) requests, validate the PSC buffer against the effective size of the scratch area, which could be less than the maximum size if the guest provided a pointer that isn't exactly at the start of the GHCB shared buffer.
CVSS Details
- CVSS 3.1 Base Score: 9.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-debuginfo-common-x86_64Upgrade perf6.12Upgrade bpftool6.12-debuginfoUpgrade bpftool6.18Upgrade kernel6.12-modules-extraUpgrade perf6.18-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-headersUpgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.12Upgrade kernel6.18-modules-extra-commonUpgrade kernel-livepatch-6.18.35-68.127Upgrade python3-perf6.18Upgrade kernel6.18-tools-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel6.18-modules-extraUpgrade perf6.18Upgrade kernel6.12-tools-develUpgrade kernel6.12-develUpgrade kernel6.12-debuginfoUpgrade kernel6.18-headersUpgrade microvm-kernel6.18Upgrade kernel6.18-toolsUpgrade kernel6.18-develUpgrade python3-perf6.18-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel6.18-tools-develUpgrade bpftool6.18-debuginfoUpgrade kernel6.12-tools-debuginfoUpgrade kernel-livepatch-6.12.94-123.174Upgrade kernel6.18-debuginfoUpgrade kernel6.18Upgrade bpftool6.12Upgrade python3-perf6.12Upgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.12-tools | Aug 10, 2026 | Jul 19, 2026 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Aug 10, 2026 | Jul 19, 2026 |
| Ubuntu | — | Upgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-7.0Upgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-gcpUpgrade linux-image-aws-7.0Upgrade linux-image-raspiUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-gcp-64kUpgrade linux-image-azureUpgrade linux-image-nvidia-bosUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-raspi-7.0Upgrade linux-image-awsUpgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-raspi-realtimeUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-oracle-7.0Upgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-nvidiaUpgrade linux-image-ibm-7.0Upgrade linux-image-oracleUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-gcp-7.0Upgrade linux-image-7.0.0-1009-awsUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-azure-fde-7.0Upgrade linux-image-ibmUpgrade linux-image-azure-fdeUpgrade linux-image-aws-64kUpgrade linux-image-7.0.0-2016-nvidia-bos | Jul 21, 2026 | Jul 20, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 3, 2026 | Jul 19, 2026 |
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