Към съдържанието
Търсене

CVE-2026-74754: 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: scsi: core: pair EH runtime PM get and put shost->eh_noresume is currently consulted twice in one error handling iteration: once before scsi_autopm_get_host() and once again before scsi_autopm_put_host(). That is racy when a PM-triggered error path flips shost->eh_noresume while the SCSI EH thread is still running. The problem flow looks like this: PM path ufshcd_set_dev_pwr_mode() shost->eh_noresume = 1 ufshcd_execute_start_stop <-- trigger EH ... shost->eh_noresume = 0 EH path scsi_error_handler() if (!shost->eh_noresume) scsi_autopm_get_host() <-- skipped ... if (!shost->eh_noresume) scsi_autopm_put_host() <-- executed later In that case one EH iteration can skip autoresume on entry and still drop a runtime PM reference on exit. That leaves an unmatched runtime PM put and can trigger a runtime PM usage count underflow. Fix this by making eh_noresume a regular bool so it can be accessed with READ_ONCE() and WRITE_ONCE(). Snapshot it once per EH iteration and use that snapshot for both runtime PM get and put decisions.

    Засегнати продукти

    • Linux Linux: ae0751ffc77e7f21629970fdab5528c573e637f8 преди 9aca00c74730f4bc12d0717d33db637a16ccdfea; ae0751ffc77e7f21629970fdab5528c573e637f8 преди 1ec5f6aa38ea990af37c49af7a4bb3db00da7f9d; ae0751ffc77e7f21629970fdab5528c573e637f8 преди 0038a2a75a15d163f428c93103c6d02d4d231a7a; ae0751ffc77e7f21629970fdab5528c573e637f8 преди fdc93f4a801077efbf1b87570ade8d8f325de62f; ae0751ffc77e7f21629970fdab5528c573e637f8 преди e83eed1bea142c8fe852fd53156845b88252ecd8; ae0751ffc77e7f21629970fdab5528c573e637f8 преди 872f486259ae0bc6b73ca4735a15d013241f73e9
    • Linux Linux: 3.3; преди 3.3; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.1.10 до 7.1.*; от 7.2 нататък

    История

    • 26 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-74754: Linux | freedomonline.bg