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CVE-2026-31509: 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: nfc: nci: fix circular locking dependency in nci_close_device nci_close_device() flushes rx_wq and tx_wq while holding req_lock. This causes a circular locking dependency because nci_rx_work() running on rx_wq can end up taking req_lock too: nci_rx_work -> nci_rx_data_packet -> nci_data_exchange_complete -> __sk_destruct -> rawsock_destruct -> nfc_deactivate_target -> nci_deactivate_target -> nci_request -> mutex_lock(&ndev->req_lock) Move the flush of rx_wq after req_lock has been released. This should safe (I think) because NCI_UP has already been cleared and the transport is closed, so the work will see it and return -ENETDOWN. NIPA has been hitting this running the nci selftest with a debug kernel on roughly 4% of the runs.

    Засегнати продукти

    • Linux Linux: 6a2968aaf50c7a22fced77a5e24aa636281efca8 преди 7ed00a3edc8597fe2333f524401e2889aa1b5edf; 6a2968aaf50c7a22fced77a5e24aa636281efca8 преди 5eef9ebec7f5738f12cadede3545c05b34bf5ac3; 6a2968aaf50c7a22fced77a5e24aa636281efca8 преди ca54e904a071aa65ef3ad46ba42d51aaac6b73b4; 6a2968aaf50c7a22fced77a5e24aa636281efca8 преди eb435d150ca74b4d40f77f1a2266f3636ed64a79; 6a2968aaf50c7a22fced77a5e24aa636281efca8 преди 1edc12d2bbcb7a8d0f1088e6fccb9d8c01bb1289; 6a2968aaf50c7a22fced77a5e24aa636281efca8 преди d89b74bf08f067b55c03d7f999ba0a0e73177eb3; 6a2968aaf50c7a22fced77a5e24aa636281efca8 преди 09143c0e8f3b03517e6233aad42f45c794d8df8e; 6a2968aaf50c7a22fced77a5e24aa636281efca8 преди 4527025d440ce84bf56e75ce1df2e84cb8178616
    • Linux Linux: 3.2; преди 3.2; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.168 до 6.1.*; 6.6.131 до 6.6.*; 6.12.80 до 6.12.*; 6.18.21 до 6.18.*; 6.19.11 до 6.19.*; от 7.0 нататък

    История

    • 22 април 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-31509: Linux | freedomonline.bg