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CVE-2026-64218: Linux

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix report_work leak on backbone_gw purge batadv_bla_purge_backbone_gw() removes stale backbone gateway entries, but fails to properly handle their associated report_work: - If report_work is running, the purge must wait for it to finish before freeing the backbone_gw, otherwise the worker may access freed memory (e.g. bat_priv). - If report_work is pending, the purge must cancel it and release the reference held for that pending work item. The previous implementation called hlist_for_each_entry_safe() inside a spin_lock_bh() section, but cancel_work_sync() may sleep and therefore cannot be called from within a spinlock-protected region. Restructure the loop to handle one entry per spinlock critical section: acquire the lock, find the next entry to purge, remove it from the hash list, then release the lock before calling cancel_work_sync() and dropping the hash_entry reference. Repeat until no more entries require purging.

    Засегнати продукти

    • Linux Linux: 23721387c409087fd3b97e274f34d3ddc0970b74 преди ce2c0ee4d76d5ee4b391fe0e31334361e25030ec; 23721387c409087fd3b97e274f34d3ddc0970b74 преди 3423a45e5c3d3c5129f88143a9a969787d7d5a0a; 23721387c409087fd3b97e274f34d3ddc0970b74 преди f1303adb1e59582f76c22798a2e2e150e054a9e7; 23721387c409087fd3b97e274f34d3ddc0970b74 преди 48663158222b3b7f6ee6791a67d512ede7fc94bb; 23721387c409087fd3b97e274f34d3ddc0970b74 преди eeddd7bab3d59c1e98642a204141f8c5d6194707; 23721387c409087fd3b97e274f34d3ddc0970b74 преди c6de1a5a9c406e30b91f1515a6ce05cc84023baa; 23721387c409087fd3b97e274f34d3ddc0970b74 преди 95a7034661274cf5985708bd2f6d86ee46f88fa9; 23721387c409087fd3b97e274f34d3ddc0970b74 преди 0459430add32ea41f3e2ef9351610e6d33627a6b
    • Linux Linux: 3.5; преди 3.5; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.142 до 6.6.*; 6.12.92 до 6.12.*; 6.18.34 до 6.18.*; 7.0.11 до 7.0.*; от 7.1 нататък

    История

    • 24 юли 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-64218: Linux | freedomonline.bg