CVE-2026-89458

{"id": "CVE-2026-89458", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e", "lessThan": "8cb96cffceead3cbd0541154d7ecc5e6474edda1", "versionType": "git"}, {"status": "affected", "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e", "lessThan": "77168af195d04b34c6de62b874624e74d64cef8d", "versionType": "git"}, {"status": "affected", "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e", "lessThan": "921ff697bb6f7067059793becf8b2d00de71ce41", "versionType": "git"}, {"status": "affected", "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e", "lessThan": "55f4df40178cdfede0d7ae848fbab00efa9b95c1", "versionType": "git"}, {"status": "affected", "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e", "lessThan": "c9adf8399732306dfc97b3adb4778038743e3f5e", "versionType": "git"}, {"status": "affected", "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e", "lessThan": "52b331c99baac653ca794bd8487c8ec4de8db203", "versionType": "git"}, {"status": "affected", "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e", "lessThan": "b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f", "versionType": "git"}, {"status": "affected", "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e", "lessThan": "cddb447c62466f3076938ce120028d7b591f9f37", "versionType": "git"}, {"status": "affected", "version": "fbbacd0dcbc3ae9398c569dbea96ae4b5ad97e04", "versionType": "git"}, {"status": "affected", "version": "5f7c9989f11305aaa43e0f4378f4f070022a9f2b", "versionType": "git"}, {"status": "affected", "version": "5.4.26", "lessThan": "5.5", "versionType": "semver"}, {"status": "affected", "version": "5.5.10", "lessThan": "5.6", "versionType": "semver"}], "programFiles": ["drivers/s390/block/dasd.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.6"}, {"status": "unaffected", "version": "0", "lessThan": "5.6", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.270", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.221", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.188", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.157", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.109", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.50", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.2.4", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/s390/block/dasd.c"], "defaultStatus": "affected"}]}], "published": "2026-09-11T20:19:26.657", "references": [{"url": "https://git.kernel.org/stable/c/52b331c99baac653ca794bd8487c8ec4de8db203", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/55f4df40178cdfede0d7ae848fbab00efa9b95c1", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/77168af195d04b34c6de62b874624e74d64cef8d", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8cb96cffceead3cbd0541154d7ecc5e6474edda1", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/921ff697bb6f7067059793becf8b2d00de71ce41", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c9adf8399732306dfc97b3adb4778038743e3f5e", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cddb447c62466f3076938ce120028d7b591f9f37", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "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."}], "lastModified": "2026-09-14T13:19:02.220", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}