CVE-2026-63938Published

KVM: SEV: Check PSC request indices against the actual size of the buffer

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-63938

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/svm/sev.c"
                    ],
                    "versions": [
                        {
                            "version": "9b54e248d2644be71cb394eb85f31ad99e023a05",
                            "lessThan": "5198f70c09a5f6e9e5f5a0a2c6b388f24294b176",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9b54e248d2644be71cb394eb85f31ad99e023a05",
                            "lessThan": "75c8d1d7291268b479794fba5808971dc2f5eaf3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9b54e248d2644be71cb394eb85f31ad99e023a05",
                            "lessThan": "505a3b94535583e4265360e2621734e355ef263d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9b54e248d2644be71cb394eb85f31ad99e023a05",
                            "lessThan": "121d88de56bc5c0ba0ce2f6381af67f948a7e7c1",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/svm/sev.c"
                    ],
                    "versions": [
                        {
                            "version": "6.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.93",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.35",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.12",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON