{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89458",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.707Z",
        "datePublished": "2026-09-11T19:43:21.346Z",
        "dateUpdated": "2026-10-19T08:47:07.708Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:47:07.708Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: Do not complete a failed ESE read as successful\n\ndasd_int_handler() completes an NRF read of an unallocated ESE track by\ncalling ese_read() and unconditionally marking the request\nDASD_CQR_SUCCESS. dasd_eckd_ese_read() can return an error before it has\nzeroed the destination buffer: a failed sense-data parse or a current\ntrack outside the requested range both return early, leaving the\ndestination pages untouched. The request is still completed successfully,\nso the block layer is handed stale / uninitialized memory instead of\nzeros.\n\nCheck the ese_read() return value and fail the request through the normal\nerror path instead of forcing DASD_CQR_SUCCESS."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/s390/block/dasd.c"
                    ],
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                            "lessThan": "8cb96cffceead3cbd0541154d7ecc5e6474edda1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                            "lessThan": "77168af195d04b34c6de62b874624e74d64cef8d",
                            "status": "affected",
                            "versionType": "git"
                        },
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                            "lessThan": "921ff697bb6f7067059793becf8b2d00de71ce41",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
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                            "status": "affected",
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                            "lessThan": "c9adf8399732306dfc97b3adb4778038743e3f5e",
                            "status": "affected",
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                            "lessThan": "52b331c99baac653ca794bd8487c8ec4de8db203",
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                            "versionType": "git"
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                            "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                            "lessThan": "b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                            "lessThan": "cddb447c62466f3076938ce120028d7b591f9f37",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fbbacd0dcbc3ae9398c569dbea96ae4b5ad97e04",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5f7c9989f11305aaa43e0f4378f4f070022a9f2b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.4.26",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.5.10",
                            "lessThan": "5.6",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/s390/block/dasd.c"
                    ],
                    "versions": [
                        {
                            "version": "5.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "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": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.10.270"
                                },
                                {
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8cb96cffceead3cbd0541154d7ecc5e6474edda1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/77168af195d04b34c6de62b874624e74d64cef8d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/921ff697bb6f7067059793becf8b2d00de71ce41"
                },
                {
                    "url": "https://git.kernel.org/stable/c/55f4df40178cdfede0d7ae848fbab00efa9b95c1"
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                {
                    "url": "https://git.kernel.org/stable/c/c9adf8399732306dfc97b3adb4778038743e3f5e"
                },
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                    "url": "https://git.kernel.org/stable/c/52b331c99baac653ca794bd8487c8ec4de8db203"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cddb447c62466f3076938ce120028d7b591f9f37"
                }
            ],
            "title": "s390/dasd: Do not complete a failed ESE read as successful",
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}