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CVE-2026-89458: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasd_int_handler() completes an NRF read of an unallocated ESE track by calling ese_read() and unconditionally marking the request DASD_CQR_SUCCESS. dasd_eckd_ese_read() can return an error before it has zeroed the destination buffer: a failed sense-data parse or a current track outside the requested range both return early, leaving the destination pages untouched. The request is still completed successfully, so the block layer is handed stale / uninitialized memory instead of zeros. Check the ese_read() return value and fail the request through the normal error path instead of forcing DASD_CQR_SUCCESS.

    Засегнати продукти

    • Linux Linux: 5e6bdd37c5526ef01326df5dabb93011ee89237e преди 8cb96cffceead3cbd0541154d7ecc5e6474edda1; 5e6bdd37c5526ef01326df5dabb93011ee89237e преди 77168af195d04b34c6de62b874624e74d64cef8d; 5e6bdd37c5526ef01326df5dabb93011ee89237e преди 921ff697bb6f7067059793becf8b2d00de71ce41; 5e6bdd37c5526ef01326df5dabb93011ee89237e преди 55f4df40178cdfede0d7ae848fbab00efa9b95c1; 5e6bdd37c5526ef01326df5dabb93011ee89237e преди c9adf8399732306dfc97b3adb4778038743e3f5e; 5e6bdd37c5526ef01326df5dabb93011ee89237e преди 52b331c99baac653ca794bd8487c8ec4de8db203; 5e6bdd37c5526ef01326df5dabb93011ee89237e преди b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f; 5e6bdd37c5526ef01326df5dabb93011ee89237e преди cddb447c62466f3076938ce120028d7b591f9f37; fbbacd0dcbc3ae9398c569dbea96ae4b5ad97e04; 5f7c9989f11305aaa43e0f4378f4f070022a9f2b; 5.4.26 преди 5.5; 5.5.10 преди 5.6
    • Linux Linux: 5.6; преди 5.6; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; 7.3 до *

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89458: Linux | freedomonline.bg