CVE-2026-64465— USB xhci 内核驱动 xhci_free_streams 原子上下文睡眠漏洞
可能的 ATT&CK 技术 1AI
T1059 · Command and Scripting Interpreter影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 8df75f42f8e67e2851cdcf6da91640fb881defd1< e623e4a203f56d5c57519a9a3cb29600551534ad | affected |
8df75f42f8e67e2851cdcf6da91640fb881defd1< d107eb316144c5fb958486e7fe604cd7f1b35cda | affected | ||
8df75f42f8e67e2851cdcf6da91640fb881defd1< 1e45aa722c4ce5663e987102aac18c8ad6a83fdd | affected | ||
8df75f42f8e67e2851cdcf6da91640fb881defd1< 10666ac9c552990204e791af653abf8e9d9ff619 | affected | ||
8df75f42f8e67e2851cdcf6da91640fb881defd1< f7b022ae07685e7526fc39f387ce65b5d309dd3b | affected | ||
8df75f42f8e67e2851cdcf6da91640fb881defd1< f90586129cf9e1fbdb718ef602eea3f15dc1c31c | affected | ||
8df75f42f8e67e2851cdcf6da91640fb881defd1< 93cd037da94fcb93183bfb2457e3a56d3eb4c8f4 | affected | ||
8df75f42f8e67e2851cdcf6da91640fb881defd1< 42c37c4b75d38b51d84f31a8e29427f5e06a7c2a | affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2026-64465 基础信息
漏洞信息
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Vulnerability Title
usb: xhci: Fix sleep in atomic context in xhci_free_streams()
来源: CVE Program / CVE List V5
Vulnerability Description
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.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-64465 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-64465 补丁与修复 (8)
同批安全公告 · Linux · 2026-07-25 · 共 274 条
| CVE-2026-64340 | USB: legousbtower 断开连接竞态条件导致释放后使用漏洞 | |
| CVE-2026-64358 | MTK JPEG 驱动工作队列释放缺陷 | |
| CVE-2026-64356 | XFS xfs_dqinode_metadir_create内存泄漏漏洞 | |
| CVE-2026-64354 | bpf: 修复BTF重复字段计数验证漏洞 | |
| CVE-2026-64355 | BPF devmap 拒绝分帧帧漏洞 | |
| CVE-2026-64352 | bpf: 允许睡眠态BPF程序访问LPM映射漏洞 | |
| CVE-2026-64353 | BPF动态内部数组查找空指针漏洞 | |
| CVE-2026-64351 | USB驱动kalmia RX帧长度边界检查缺失漏洞 | |
| CVE-2026-64350 | USB cdnsp驱动流上下文数组内存泄露漏洞 | |
| CVE-2026-64349 | DWC3 ulpi_setup函数中读写寄存器调用修复 | |
| CVE-2026-64348 | USB ISO调度提交失败时未释放内存漏洞 | |
| CVE-2026-64347 | USB Gadget Composite USB_DT_OTG处理程序空指针检查缺陷 | |
| CVE-2026-64346 | USB Gadget UDC gadget_match_driver Use-After-Free 漏洞 | |
| CVE-2026-64345 | USB打印机 gadget 成功打开时才获取 kref | |
| CVE-2026-64344 | Linux内核 idmouse 模块断开竞态导致释放后使用漏洞 | |
| CVE-2026-64343 | USB ldusb 断开连接竞态条件使用后释放漏洞 | |
| CVE-2026-64341 | USB iowarrior 断开连接竞态条件导致释放后使用漏洞 | |
| CVE-2026-64342 | USB: iowarrior 断开连接时释放后使用漏洞 | |
| CVE-2026-64331 | usbip vudc: vep_dequeue()空指针解引用漏洞 | |
| CVE-2026-64328 | USB gadget f_fs DMA 资源泄露漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2026-64465
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