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CVE-2026-68312: 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: cifs: fix cifsFileInfo leak on kmalloc failure in deferred close drain paths In cifs_close_deferred_file(), cifs_close_all_deferred_files(), and cifs_close_deferred_file_under_dentry(), when a pending deferred close is cancelled via cancel_delayed_work(), the subsequent kmalloc_obj() to add the file to the local processing list may fail under memory pressure. The loop breaks immediately, but the cancelled work is no longer pending (it would have called _cifsFileInfo_put()), and the cfile is never added to file_head for processing. The cifsFileInfo reference and the open server handle both leak. Fix by saving the cfile that failed allocation in a local variable, breaking as before, and calling _cifsFileInfo_put() on it after releasing the lock. Any files later in the iteration are unaffected since their deferred work is still pending and will fire normally.

    Засегнати продукти

    • Linux Linux: e3fc065682ebbbd15b0ce0036800f4acbf765d46 преди 75143abc21f627da7ee3b0336814bd702692e830; e3fc065682ebbbd15b0ce0036800f4acbf765d46 преди c968b2417f6a15d35ff4b97d534af4a126cb510b; e3fc065682ebbbd15b0ce0036800f4acbf765d46 преди 7af7ec3af091f55d01f0ebe0246d10e37f358311; e3fc065682ebbbd15b0ce0036800f4acbf765d46 преди 6089f561e2c31a3ba52836c75c7d2ab50d2eea41; e3fc065682ebbbd15b0ce0036800f4acbf765d46 преди 32390b3f06f26e366cfb27dbac4bc0196c321535; e3fc065682ebbbd15b0ce0036800f4acbf765d46 преди c2f2e83e3bbc5483730fd4ee903182761f1ae50f
    • Linux Linux: 5.15; преди 5.15; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.1.6 до 7.1.*; 7.2 до *

    История

    • 10 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-68312: Linux | freedomonline.bg