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CVE-2026-90235: Linux

9.8

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 по мрежата, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE xprtsock replaces and restores sk->sk_data_ready and sk->sk_write_space on live sockets with plain stores, and xs_udp_do_set_buffer_size() invokes sk->sk_write_space via a plain load. These callback pointers are shared with generic socket and protocol paths that may read or invoke them concurrently, so xprtsock needs the same READ_ONCE()/WRITE_ONCE() callback visibility contract that the validated 4022 family applied elsewhere. When SUNRPC takes over an AF_LOCAL, UDP, or TCP socket and later restores the lower-socket callbacks during teardown, another CPU may still hold an earlier callback snapshot. The plain replace/restore pattern leaves the same visibility hole as the validated 4022 family, so a stale snapshot can still invoke xs_data_ready() or xs_udp_write_space() after the live callback fields have already been restored to the lower-socket handlers. Use WRITE_ONCE() for the shared sk_data_ready and sk_write_space stores in xs_local_finish_connecting(), xs_udp_finish_connecting(), xs_tcp_finish_connecting(), and xs_restore_old_callbacks(). Use READ_ONCE() for the direct sk_write_space invocation in xs_udp_do_set_buffer_size(). This matches the required callback visibility contract while leaving adjacent sk_state_change and sk_error_report handling unchanged.

    Засегнати продукти

    • Linux Linux: a246b0105bbd9a70a698f69baae2042996f2a0e9 преди 6b79b5a0f1c566f0aa6e08c7981826015a0acc4d; a246b0105bbd9a70a698f69baae2042996f2a0e9 преди ed80d009b154aa204f541d390884851b3d4f15ae; a246b0105bbd9a70a698f69baae2042996f2a0e9 преди 589f761236e05ff9de1bdfd6a5258f113e6457fe; a246b0105bbd9a70a698f69baae2042996f2a0e9 преди da652cb17f9faeea1fa44b7215e8869a0b10b664; a246b0105bbd9a70a698f69baae2042996f2a0e9 преди d8f0b83753809761a560c4b33249388548ba6e43; a246b0105bbd9a70a698f69baae2042996f2a0e9 преди 33930840b5f0a79f826e7c69dc6cd78f72a67481
    • Linux Linux: 2.6.15; преди 2.6.15; 6.1.191 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-90235: Linux | freedomonline.bg