{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80836",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.796Z",
        "datePublished": "2026-09-04T15:54:44.981Z",
        "dateUpdated": "2026-10-19T08:44:28.509Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:44:28.509Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: virtio - bound the akcipher result length\n\nvirtio_crypto_dataq_akcipher_callback() sets the result length from the\ndevice-reported response length without bounding it to the destination\nbuffer, which was allocated for the original request length.\nsg_copy_from_buffer() then reads that many bytes from the destination\nbuffer; a backend reporting a larger length over-reads adjacent kernel\nheap into the caller's scatterlist (an out-of-bounds read).\n\nClamp the reported length to the originally requested destination length.\nA conforming device reports no more than that, so valid results are\nunaffected."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/crypto/virtio/virtio_crypto_akcipher_algs.c"
                    ],
                    "versions": [
                        {
                            "version": "a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a",
                            "lessThan": "bd33cb19bcb432a4dd5e8f50be5e2547af1e9f78",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a",
                            "lessThan": "12c4f29e97f31b013f77ad65ba7daeb02aaa6abe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a",
                            "lessThan": "5545de5050cbc3594506d74f2c392b0716cf8bca",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a",
                            "lessThan": "3fda114a42f1510a4ec8a0b17a0cfc997952ccc2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a",
                            "lessThan": "1f9f877b1ef1fbd4ee95571cddf39c8002cee252",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a",
                            "lessThan": "f77a956f6a19f9463ef1527c9d0cda50dded6b92",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/crypto/virtio/virtio_crypto_akcipher_algs.c"
                    ],
                    "versions": [
                        {
                            "version": "5.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.49",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.13",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.3",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.19",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "6.12.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "6.18.49"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "7.1.13"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "7.2.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/bd33cb19bcb432a4dd5e8f50be5e2547af1e9f78"
                },
                {
                    "url": "https://git.kernel.org/stable/c/12c4f29e97f31b013f77ad65ba7daeb02aaa6abe"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5545de5050cbc3594506d74f2c392b0716cf8bca"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3fda114a42f1510a4ec8a0b17a0cfc997952ccc2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1f9f877b1ef1fbd4ee95571cddf39c8002cee252"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f77a956f6a19f9463ef1527c9d0cda50dded6b92"
                }
            ],
            "title": "crypto: virtio - bound the akcipher result length",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}