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CVE-2026-93269: Linux

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CVSS

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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: ext4: fix circular lock dependency in ext4_ext_migrate Move iput(tmp_inode) after ext4_writepages_up_write() to avoid a circular lock dependency between s_writepages_rwsem and sb_internal (freeze protection). The deadlock scenario: CPU0 (EXT4_IOC_MIGRATE) CPU1 (orphan cleanup during mount) ---- ---- ext4_ext_migrate() ext4_writepages_down_write() s_writepages_rwsem (write) ext4_evict_inode() sb_start_intwrite() [sb_internal] ... ext4_writepages() s_writepages_rwsem (read) [BLOCKED] iput(tmp_inode) ext4_evict_inode() sb_start_intwrite() [BLOCKED] The tmp_inode is a temporary inode with nlink=0 created solely for building the extent tree. Its eviction does not require s_writepages_rwsem protection, so deferring iput() until after releasing the rwsem is safe.

    Засегнати продукти

    • Linux Linux: cb85f4d23f794e24127f3e562cb3b54b0803f456 преди f204882d5eaca09f7848f081c9c9b5bbf2234895; cb85f4d23f794e24127f3e562cb3b54b0803f456 преди 452950461241dfed8b1d32e94b227db38c99c5af; cb85f4d23f794e24127f3e562cb3b54b0803f456 преди ada23457d4748d6e9c36c6f871fc29a6f558c48c; cb85f4d23f794e24127f3e562cb3b54b0803f456 преди e4223231b6860141813637a6413c2371ae4d6fa8; cb85f4d23f794e24127f3e562cb3b54b0803f456 преди 32f7ab52875ec7f800ca67e7176e5743a84baddf; cb85f4d23f794e24127f3e562cb3b54b0803f456 преди a897682793eba5de51ee6f3152760374afa629cf; eb799e163dc2bc1ea0a4820b66f79d32a5e907df; bcc1eab71a67c46b9e24544ac7923f44444174ce; 8cf20fb73e73a4c4df0328b5297842c5ef34fdd9; e5d25003d059649e18a249635ed5ca7a7b1de5ad; 69f8a7991fd93c49096ddd11574db3e7df238b7b; 4.9.215 преди 4.10; 4.14.172 преди 4.15; 4.19.107 преди 4.20; 5.4.23 преди 5.5; 5.5.7 преди 5.6
    • Linux Linux: 5.6; преди 5.6; 6.1.191 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; 7.3 до *

    История

    • 24 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-93269: Linux | freedomonline.bg