Към съдържанието
Търсене

CVE-2026-74386: Linux

Няма оценка

CVSS

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: fix page fragment cache leak in error path In nvmet_tcp_alloc_queue(), when a connection is closed during the allocation process (e.g., nvmet_tcp_set_queue_sock() returns -ENOTCONN), the error handling jumps to out_destroy_sq and then to out_ida_remove without draining the page fragment cache. Although nvmet_tcp_free_cmd() is called in some error paths to release individual page fragments, the underlying page cache reference held by queue->pf_cache is never released. The first allocation using pf_cache is the call to nvmet_tcp_alloc_cmd() for queue->connect, which happens after ida_alloc() returns successfully. This results in a page leak each time a connection fails during allocation, which could lead to memory exhaustion over time if connections are repeatedly opened and closed. Fix this by calling page_frag_cache_drain() before freeing the queue structure in the out_ida_remove label.

    Засегнати продукти

    • Linux Linux: 872d26a391da92ed8f0c0f5cb5fef428067b7f30 преди aadb8eb9006e192c51b499860f40765de7d55680; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 преди fc11e3f0daaadb6e600a86e54b089d4662d0a464; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 преди a43a9abc1ebf663f0aa56a729106f68dd9c77da6; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 преди ba3209704b3cd46961e4e081af5c52a780785648; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 преди 5fbe83a374f09561a0f0c1f4aa021501ffd681eb; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 преди 4dae393956093c807212918fd91a8fc70df15338
    • Linux Linux: 5.0; преди 5.0; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

    История

    • 15 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-74386: Linux | freedomonline.bg