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 bpftool6.12-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade perf6.18-debuginfoUpgrade kernel6.12Upgrade python3-perf6.18Upgrade perf6.12Upgrade kernel6.12-headersUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-modules-extraUpgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel-livepatch-6.18.35-68.127Upgrade kernel6.18-modules-extra-commonUpgrade bpftool6.18Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.18-tools-develUpgrade microvm-kernel6.18Upgrade kernel6.18-toolsUpgrade kernel6.12-debuginfoUpgrade kernel6.12-develUpgrade kernel6.12-toolsUpgrade perf6.18Upgrade kernel6.18-modules-extraUpgrade perf6.12-debuginfoUpgrade kernel6.12-tools-debuginfoUpgrade bpftool6.18-debuginfoUpgrade bpftool6.12Upgrade python3-perf6.12Upgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-headersUpgrade kernel6.18Upgrade kernel-livepatch-6.12.94-123.174Upgrade kernel6.18-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel6.18-develUpgrade python3-perf6.18-debuginfoUpgrade kernel6.12-tools-develUpgrade kernel6.18-tools-debuginfo | 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-azureUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-raspi-7.0Upgrade linux-image-awsUpgrade linux-image-aws-7.0Upgrade linux-image-azure-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-raspiUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-gcpUpgrade linux-image-nvidia-64kUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-gcp-64kUpgrade linux-image-nvidia-7.0Upgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-nvidia-bosUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-oracleUpgrade linux-image-aws-64k-7.0Upgrade linux-image-nvidiaUpgrade linux-image-ibm-7.0Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-azure-fde-7.0Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-gcp-7.0Upgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-7.0Upgrade linux-image-ibmUpgrade linux-image-7.0.0-1009-awsUpgrade linux-image-azure-fde | 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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