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vuln-cve/data/2026/80xxx/CVE-2026-80836.json
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{
"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": "2026-10-30T12:31:09.682Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-30T12:31:09.682Z"
},
"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": "e0ffee8adc71a0bc548e5ebc6e021c013a874d79",
"status": "affected",
"versionType": "git"
},
{
"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": "6.1.191",
"lessThanOrEqual": "6.1.*",
"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": "6.1.191"
},
{
"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/e0ffee8adc71a0bc548e5ebc6e021c013a874d79"
},
{
"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"
}
}
}
}