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CVE-2026-53129: 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: fs/mbcache: cancel shrink work before destroying the cache mb_cache_destroy() calls shrinker_free() and then frees all cache entries and the cache itself, but it does not cancel the pending c_shrink_work work item first. If mb_cache_entry_create() schedules c_shrink_work via schedule_work() and the work item is still pending or running when mb_cache_destroy() runs, mb_cache_shrink_worker() will access the cache after its memory has been freed, causing a use-after-free. This is only reachable by a privileged user (root or CAP_SYS_ADMIN) who can trigger the last put of a mounted ext2/ext4/ocfs2 filesystem. Cancel the work item with cancel_work_sync() before calling shrinker_free(), ensuring the worker has finished and will not be rescheduled before the cache is torn down.

    Засегнати продукти

    • Linux Linux: c2f3140fe2eceb3a6c1615b2648b9471544881c6 преди 40148c615687c1692712e50a6de53d62dfbfc20f; c2f3140fe2eceb3a6c1615b2648b9471544881c6 преди cbdd6f0fb19a0ce8a013acd80ac87a62f57fa20d; c2f3140fe2eceb3a6c1615b2648b9471544881c6 преди a88d39a74a208e197c03bffaa2df34de732af19f; c2f3140fe2eceb3a6c1615b2648b9471544881c6 преди 0e4eff315d799f5842b95872199b0f0fb8ef5f51; c2f3140fe2eceb3a6c1615b2648b9471544881c6 преди b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c; c2f3140fe2eceb3a6c1615b2648b9471544881c6 преди d227786ab1119669df4dc333a61510c52047cce4
    • Linux Linux: 4.6; преди 4.6; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.91 до 6.12.*; 6.18.33 до 6.18.*; 7.0.10 до 7.0.*; от 7.1 нататък

    История

    • 24 юни 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-53129: Linux | freedomonline.bg