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CVE-2026-98056: Linux

7.5

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: nvme: remove stale namespaces by NSID range during scan nvme_scan_ns_list() drops the stale namespaces in each gap in the reported NSID list one NSID at a time. Every iteration calls nvme_find_get_ns() to look the namespace up and removes it if it is present. The loop runs once per NSID in the gap rather than once per namespace actually present. NSIDs are 32-bit, so a target with a sparse NSID space can make a single gap spin the loop billions of times with nothing to remove. watchdog: BUG: soft lockup - CPU#4 stuck for 26s! Workqueue: nvme-wq nvme_scan_work [nvme_core] RIP: 0010:__srcu_read_unlock+0xb/0x20 Call Trace: nvme_find_get_ns+0x7d/0xb0 [nvme_core] nvme_scan_ns_list+0xe8/0x280 [nvme_core] nvme_scan_work+0x18a/0x280 [nvme_core] process_one_work+0x197/0x380 worker_thread+0x2fe/0x410 kthread+0xe0/0x100 Rename nvme_remove_invalid_namespaces() to nvme_remove_nsid_range() and give it an open (start, end) NSID range. ctrl->namespaces is sorted by NSID, so the whole gap is dropped in a single walk that stops once end is reached. This bounds the work by the namespaces that are present instead of by the size of the gap.

    Засегнати продукти

    • Linux Linux: 540c801c65eb58e05e0ca38b6fd644a83d7e2b33 преди e6a94b2c4c80a38002346ce915a9b9a3d478a3e6; 540c801c65eb58e05e0ca38b6fd644a83d7e2b33 преди c84ad7407fb16b92d9b7a649cc304a9cf3757897; 540c801c65eb58e05e0ca38b6fd644a83d7e2b33 преди f56b2bb4b18b017b056c4c17c66b2c4c54bf6ee4; 540c801c65eb58e05e0ca38b6fd644a83d7e2b33 преди 52200fc41a79da430ccf7c126ed837535b087ea2; 540c801c65eb58e05e0ca38b6fd644a83d7e2b33 преди 4ed7f3d7d435bf5b63da2814dc9270f5ba896011
    • Linux Linux: 4.5; преди 4.5; 6.6.160 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; 7.3 до *

    История

    • 25 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98056: Linux | freedomonline.bg