{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64592",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.798Z",
        "datePublished": "2026-08-06T07:13:49.098Z",
        "dateUpdated": "2026-08-17T04:58:14.158Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T04:58:14.158Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: mm: Unconditionally sfence.vma for spurious fault\n\nSvvptc does not guarantee that it's safe to just return here. Since we\nhave already cleared our bit, if, theoretically, the bounded timeframe\nfor the accessed page to become valid still hasn't happened after sret,\nwe could fault again and actually crash.\n\nHopefully, these spurious faults should be rare enough that this is an\nacceptable slowdown."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/riscv/kernel/entry.S"
                    ],
                    "versions": [
                        {
                            "version": "503638e0babf364061bc50fca5103b00a56cc50a",
                            "lessThan": "c4df24702bfc3cd2bed7746b94dc6139a3fa5428",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "503638e0babf364061bc50fca5103b00a56cc50a",
                            "lessThan": "4d730cab96e6b75e4a07c4baf37294ebc07f795e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "503638e0babf364061bc50fca5103b00a56cc50a",
                            "lessThan": "ede985ff4b569ed2454024f8bb107a6729fe08aa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "503638e0babf364061bc50fca5103b00a56cc50a",
                            "lessThan": "1b2c6b56a9fa0dcbef461039937de22b1cbecc7d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/riscv/kernel/entry.S"
                    ],
                    "versions": [
                        {
                            "version": "6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.96",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.39",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.4",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.12.96"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.18.39"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "7.1.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c4df24702bfc3cd2bed7746b94dc6139a3fa5428"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4d730cab96e6b75e4a07c4baf37294ebc07f795e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ede985ff4b569ed2454024f8bb107a6729fe08aa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1b2c6b56a9fa0dcbef461039937de22b1cbecc7d"
                }
            ],
            "title": "riscv: mm: Unconditionally sfence.vma for spurious fault",
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                "engine": "bippy-1.2.0"
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        }
    }
}