{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80708",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.787Z",
        "datePublished": "2026-08-28T06:53:08.843Z",
        "dateUpdated": "2026-08-28T06:53:08.843Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-28T06:53:08.843Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: Fix missing mem scrub at clear key import in cca_clr2cipherkey()\n\nThe helper function _ip_cprb_helper() uses internal buffer memory for\nbuilding and processing CPRBs. After use this buffer was never\nscrubbed which could lead to leaving for example clear key material in\nmemory which could be exposed via tricky reuse of this same memory.\n\nExtend the _ip_cprb_helper() function with another parameter 'scrub'\nused to steer scrubbing of this buffer. So now the caller has the\nopportunity to decide if scrubbing is needed or not.\n\nExtend the clear key to secure key token import process in function\ncca_clr2cipherkey() to tell the helper function from above to scrub\nthe cprb buffer when the clear key value is part of the request data.\n\nAdd explicit scrubbing on return from function cca_clr2cipherkey() for\nthe random EXOR buffer and the cprb buffer.\n\nOverall this cleans the internal used buffer in case of clear key\nimport to prevent sensitive data to get exposed."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/s390/crypto/zcrypt_ccamisc.c"
                    ],
                    "versions": [
                        {
                            "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
                            "lessThan": "8e1c0def77b7450be0ed607ed0d7bae629d30020",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
                            "lessThan": "be7ae07fb745d1cf575b03a178a055b0a2859364",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
                            "lessThan": "4e26d0d72bfdec311f12acfa0c6b7fbeb6a343d3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
                            "lessThan": "7dd6e556dbfc91d3d511cfd1015d2dad42608010",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
                            "lessThan": "b453003ae6a869f5bdf025b5519cbb38295ae4f1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
                            "lessThan": "fbb0410986e8ad214121e51a4a28c3d0a10b7644",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
                            "lessThan": "ebfbb9ac7adbb1e3556100b54a27e8a9b102feac",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd",
                            "lessThan": "01476391aecef36a3b789ee844357b22fbc90665",
                            "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/s390/crypto/zcrypt_ccamisc.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.265",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.216",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.183",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.152",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.104",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.44",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.8",
                            "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": "5.4",
                                    "versionEndExcluding": "5.10.265"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "5.15.216"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
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                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
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                                },
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                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.12.104"
                                },
                                {
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                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "7.1.8"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8e1c0def77b7450be0ed607ed0d7bae629d30020"
                },
                {
                    "url": "https://git.kernel.org/stable/c/be7ae07fb745d1cf575b03a178a055b0a2859364"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4e26d0d72bfdec311f12acfa0c6b7fbeb6a343d3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7dd6e556dbfc91d3d511cfd1015d2dad42608010"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b453003ae6a869f5bdf025b5519cbb38295ae4f1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fbb0410986e8ad214121e51a4a28c3d0a10b7644"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ebfbb9ac7adbb1e3556100b54a27e8a9b102feac"
                },
                {
                    "url": "https://git.kernel.org/stable/c/01476391aecef36a3b789ee844357b22fbc90665"
                }
            ],
            "title": "s390/zcrypt: Fix missing mem scrub at clear key import in cca_clr2cipherkey()",
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}