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CVE-2026-64465: 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: usb: xhci: Fix sleep in atomic context in xhci_free_streams() When a USB device with active stream endpoints is disconnected, xhci_free_streams() is called from the hub_event workqueue to free the stream resources. It calls xhci_free_stream_info() while holding xhci->lock with irqs disabled. xhci_free_stream_info() invokes xhci_free_stream_ctx(), which calls dma_free_coherent() for large stream context arrays. dma_free_coherent() can sleep (e.g. via vunmap), triggering a BUG when called from atomic context. Call trace: dma_free_attrs+0x174/0x220 xhci_free_stream_info+0xd0/0x11c xhci_free_streams+0x278/0x37c usb_free_streams+0x98/0xc0 usb_unbind_interface+0x1b8/0x2f8 device_release_driver_internal+0x1d4/0x2cc device_release_driver+0x18/0x28 bus_remove_device+0x160/0x1a4 device_del+0x1ec/0x350 usb_disable_device+0x98/0x214 usb_disconnect+0xf0/0x35c hub_event+0xab4/0x19ec process_one_work+0x278/0x63c Fix this by saving the stream_info pointers and clearing the ep references under the lock, then calling xhci_free_stream_info() outside the lock where sleeping is allowed.

    Засегнати продукти

    • Linux Linux: 8df75f42f8e67e2851cdcf6da91640fb881defd1 преди e623e4a203f56d5c57519a9a3cb29600551534ad; 8df75f42f8e67e2851cdcf6da91640fb881defd1 преди d107eb316144c5fb958486e7fe604cd7f1b35cda; 8df75f42f8e67e2851cdcf6da91640fb881defd1 преди 1e45aa722c4ce5663e987102aac18c8ad6a83fdd; 8df75f42f8e67e2851cdcf6da91640fb881defd1 преди 10666ac9c552990204e791af653abf8e9d9ff619; 8df75f42f8e67e2851cdcf6da91640fb881defd1 преди f7b022ae07685e7526fc39f387ce65b5d309dd3b; 8df75f42f8e67e2851cdcf6da91640fb881defd1 преди f90586129cf9e1fbdb718ef602eea3f15dc1c31c; 8df75f42f8e67e2851cdcf6da91640fb881defd1 преди 93cd037da94fcb93183bfb2457e3a56d3eb4c8f4; 8df75f42f8e67e2851cdcf6da91640fb881defd1 преди 42c37c4b75d38b51d84f31a8e29427f5e06a7c2a
    • Linux Linux: 2.6.35; преди 2.6.35; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; 7.2 до *

    История

    • 25 юли 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-64465: Linux | freedomonline.bg