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CVE-2026-43127: 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: ntfs3: fix circular locking dependency in run_unpack_ex Syzbot reported a circular locking dependency between wnd->rw_lock (sbi->used.bitmap) and ni->file.run_lock. The deadlock scenario: 1. ntfs_extend_mft() takes ni->file.run_lock then wnd->rw_lock. 2. run_unpack_ex() takes wnd->rw_lock then tries to acquire ni->file.run_lock inside ntfs_refresh_zone(). This creates an AB-BA deadlock. Fix this by using down_read_trylock() instead of down_read() when acquiring run_lock in run_unpack_ex(). If the lock is contended, skip ntfs_refresh_zone() - the MFT zone will be refreshed on the next MFT operation. This breaks the circular dependency since we never block waiting for run_lock while holding wnd->rw_lock.

    Засегнати продукти

    • Linux Linux: 57f7979aefdcef66326bda47e07ee0d8be64bf21 преди d60f09d2d16c44a797d8cb67015cde2508720506; db7fc56646cafe39599a4c21f1398e2bdfd5c185 преди 76016d15bbd90caa0ce7765fddf9bde8e943e601; 5fc982fe7eca9d0cf7b25832450ebd4f7c8e1c36 преди b014372b62237521444ee51384549bdf48b79015; 5fc982fe7eca9d0cf7b25832450ebd4f7c8e1c36 преди b8d22d9d8260b0f4f4d8e2898c98037c9982ea66; 5fc982fe7eca9d0cf7b25832450ebd4f7c8e1c36 преди 08ce2fee1b869ecbfbd94e0eb2630e52203a2e03; 6.6.66 преди 6.6.160; 6.12.5 преди 6.12.114
    • Linux Linux: 6.13; преди 6.13; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.16 до 6.18.*; 6.19.6 до 6.19.*; от 7.0 нататък

    История

    • 6 май 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-43127: Linux | freedomonline.bg