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CVE-2026-89800: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/uvmm: clear the dirty flag when unwinding an OP_UNMAP_SPARSE A successful OP_UNMAP_SPARSE marks its region dirty with nouveau_uvma_region_dirty() and defers the teardown to nouveau_uvmm_bind_job_cleanup(); it does not remove the region from uvmm->region_mt. If a later op in the job fails, the unwind path never clears reg->dirty (set in one place, cleared nowhere) and sets op->reg = NULL, so cleanup skips the teardown. The region is left in the tree with dirty set and its completion never signalled. Later binds over that range then fail permanently -- -ENOENT or -EINVAL from the dirty checks, or an unkillable wait_for_completion() in bind_validate_region() -- for the lifetime of the uvmm. Clear reg->dirty when the unwind reverts the sparse unmap, restoring the region to the state it was found in.

    Засегнати продукти

    • Linux Linux: b88baab828713ce0b49b185444b2ee83bed373a8 преди a129b2b875c148aba233ace8447a0c36ca3bae07; b88baab828713ce0b49b185444b2ee83bed373a8 преди 196ce9e5e93202da097062be24e404984dbc5ac2; b88baab828713ce0b49b185444b2ee83bed373a8 преди 1101cbfe7f342e5eaaf7444965d4f1215abdac4c; b88baab828713ce0b49b185444b2ee83bed373a8 преди c60033c172420179b7bbb3d1f843f8dc90164dc5; b88baab828713ce0b49b185444b2ee83bed373a8 преди 38a62306c4266bcb3cd89e33c7111ee33096ebb3
    • Linux Linux: 6.6; преди 6.6; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.51 до 6.18.*; 7.2.5 до 7.2.*; от 7.3 нататък

    История

    • 16 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89800: Linux | freedomonline.bg