CVE-2026-64465

CVE CVE-2026-64465EUVD EUVD-2026-48809Published 2026-07-25T08:51:31.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 0; patch: 5.15.212; 2.6.35; patch: 7.2-rc3; 8df75f42f8e67e2851cdcf6da91640fb881defd1 <f7b022ae07685e7526fc39f387ce65b5d309dd3b; 8df75f42f8e67e2851cdcf6da91640fb881defd1 <10666ac9c552990204e791af653abf8e9d9ff619; 8df75f42f8e67e2851cdcf6da91640fb881defd1 <e623e4a203f56d5c57519a9a3cb29600551534ad; patch: 6.6.145; patch: 6.1.178; 8df75f42f8e67e2851cdcf6da91640fb881defd1 <f90586129cf9e1fbdb718ef602eea3f15dc1c31c; patch: 6.18.39; 8df75f42f8e67e2851cdcf6da91640fb881defd1 <d107eb316144c5fb958486e7fe604cd7f1b35cda; 8df75f42f8e67e2851cdcf6da91640fb881defd1 <93cd037da94fcb93183bfb2457e3a56d3eb4c8f4; patch: 6.12.96; patch: 7.1.4; 8df75f42f8e67e2851cdcf6da91640fb881defd1 <42c37c4b75d38b51d84f31a8e29427f5e06a7c2a; patch: 5.10.261; 8df75f42f8e67e2851cdcf6da91640fb881defd1 <1e45aa722c4ce5663e987102aac18c8ad6a83fdd

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

Does this concern one of your customers?

This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.

Try it for 28 days

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.