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CVE-2026-89484: 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: lockd: fix NULL dereference on lockowner allocation failure nlmclnt_locks_init_private() installs NLM file lock operations even when nlmclnt_find_lockowner() fails to allocate a lockowner. nlmclnt_proc() then returns -ENOMEM, but the VFS still tears down the partially initialized file_lock and calls locks_release_private(). That invokes nlmclnt_locks_release_private(), which dereferences fl->fl_u.nfs_fl.owner and crashes because the owner was never installed. Clear fl_ops before attempting to initialize the NLM private state, and install the NLM lock operations only after a lockowner has been allocated successfully.

    Засегнати продукти

    • Linux Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди b61053a3795c2913a7af3ab6218acfdaf52fcafe; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 6db5af172ccc3223c8f730a9a4212f6427feee3e; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 07adfbb3de7529f58ca708a97ead7fa4fdb71056; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди d662f7fc04fde305a27f304b3cd19b614d366839; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 51af080ca4e553256c59a75a877b9b4fff828311; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 4c7fc129db061c7daab841c4f3c342d894832362
    • Linux Linux: 2.6.12; преди 2.6.12; 6.1.191 до 6.1.*; 6.6.160 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-2026-89484: Linux | freedomonline.bg