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CVE-2026-89576: 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: dm-era: fix shadowed superblock leak on take-snap failure metadata_take_snap() bumps the live superblock refcount and then dm_tm_shadow_block() allocates a new block for the metadata snapshot. If the subsequent dm_sm_inc_block() of writeset_tree_root or era_array_root fails, the function only unlocks the clone and returns. The newly allocated shadow block is never returned to the metadata space map, so each failed take-snap permanently leaks one metadata block. Free the clone with dm_sm_dec_block() on those error paths, matching the final step of metadata_drop_snap().

    Засегнати продукти

    • Linux Linux: eec40579d84873dfb7021eb24c50360f073237c5 преди 54dd21ca945ecc07885012b9f3e8197f091cfba0; eec40579d84873dfb7021eb24c50360f073237c5 преди ef00efb6fcaee88f50891279ceced17c614e97f7; eec40579d84873dfb7021eb24c50360f073237c5 преди e9fa68b89214bc65af0ef963af7ec3cce9f866e0; eec40579d84873dfb7021eb24c50360f073237c5 преди dc731d7fddfd6149f5e88ea080475d18c36d3c64; eec40579d84873dfb7021eb24c50360f073237c5 преди d66ceeefb87ddb097b0546bafc581380b816b048; eec40579d84873dfb7021eb24c50360f073237c5 преди 36ff918637e3517f732188a3c39dbeae5b9cfb1b; eec40579d84873dfb7021eb24c50360f073237c5 преди 6876ca330e741fb8886d12070cb6a7f9cb67257e; eec40579d84873dfb7021eb24c50360f073237c5 преди 39c5aa3bd8ec3912d2cd0b3fe092642b0d2b0713
    • Linux Linux: 3.15; преди 3.15; 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.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89576: Linux | freedomonline.bg