{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80832",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.796Z",
        "datePublished": "2026-09-04T15:54:40.017Z",
        "dateUpdated": "2026-10-19T08:44:24.636Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:44:24.636Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qce - fix CCM AAD buffer underallocation\n\nThe AAD buffer allocated in qce_aead_ccm_prepare_buf_assoclen()\ncan be smaller than the length later programmed into the DMA\nscatterlist.\n\nThe allocation size is currently calculated as:\n\n  ALIGN(assoclen, 16) + MAX_CCM_ADATA_HEADER_LEN\n\nwhile the DMA length is set to:\n\n  ALIGN(assoclen + adata_header_len, 16)\n\nSince ALIGN() does not distribute over addition, the allocation\ncan be smaller than the DMA length. For example, when\nassoclen = 32 and adata_header_len = 2:\n\n  allocation = ALIGN(32, 16) + 6 = 38\n  DMA length = ALIGN(32 + 2, 16) = 48\n\nAs a result, the QCE hardware can read beyond the allocated\nbuffer while computing the CBC-MAC over the associated data.\nThe extra bytes are folded into the authentication tag,\nresulting in an incorrect tag and causing CCM self-test\nfailures such as:\n\n  alg: aead: ccm-aes-qce encryption test failed (wrong result)\n  on test vector 8\n\nFix the allocation by adding the maximum possible AAD header\nlength before alignment:\n\n  ALIGN(assoclen + MAX_CCM_ADATA_HEADER_LEN, 16)\n\nThis guarantees that the allocated buffer is large enough\nfor the fully padded AAD data for all supported header sizes."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/crypto/qce/aead.c"
                    ],
                    "versions": [
                        {
                            "version": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50",
                            "lessThan": "11775b35ce9f27e73d62188d7d38aa0dc0a219aa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50",
                            "lessThan": "c9e0f06a023107694698a7930616aeb460d91816",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50",
                            "lessThan": "cc56d2b0d77cfeea061e98114992ee687d5eb4dd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50",
                            "lessThan": "002f1f99aef7ea631cb687fc17bce64e4963f6aa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50",
                            "lessThan": "2f65718b9c1095eef1ae9b374aa0384b1b083f3c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50",
                            "lessThan": "46a84efe2dbaddde89073a3c00c694486937c34b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50",
                            "lessThan": "4839f4c21f9c577eedef2919ced878a3057c7fc3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9363efb4181c5e0fbf86bdfa759262aa29f0eb50",
                            "lessThan": "7f2345f47dd189625f657cd72437179ab4170ee1",
                            "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/qce/aead.c"
                    ],
                    "versions": [
                        {
                            "version": "5.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.220",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.187",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.156",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.108",
                            "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": "5.14",
                                    "versionEndExcluding": "5.15.220"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "6.1.187"
                                },
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                                    "versionStartIncluding": "5.14",
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                                    "versionEndExcluding": "7.2.3"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.14",
                                    "versionEndExcluding": "7.3"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/11775b35ce9f27e73d62188d7d38aa0dc0a219aa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c9e0f06a023107694698a7930616aeb460d91816"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cc56d2b0d77cfeea061e98114992ee687d5eb4dd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/002f1f99aef7ea631cb687fc17bce64e4963f6aa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2f65718b9c1095eef1ae9b374aa0384b1b083f3c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/46a84efe2dbaddde89073a3c00c694486937c34b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4839f4c21f9c577eedef2919ced878a3057c7fc3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7f2345f47dd189625f657cd72437179ab4170ee1"
                }
            ],
            "title": "crypto: qce - fix CCM AAD buffer underallocation",
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}