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CVE-2026-64470— Bluetooth: btusb: fix use-after-free on marvell probe failure

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于未正确停止TX URBs，可能导致释放后重用。

AI Predicted 4.4 Difficulty: Hard EPSS 0.18% · P8

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux a4ccc9e33d2f01532bcceb621ea06bbf4db6efac< 1edd524de5cc8143ece9c42c466346983dc5b5ed affected
a4ccc9e33d2f01532bcceb621ea06bbf4db6efac< 0ccb1cb0a464dab78284c34196cd3e8e18bab4c4 affected
a4ccc9e33d2f01532bcceb621ea06bbf4db6efac< 631de465aba7f8ae46478bf5f598111412e8eff8 affected
a4ccc9e33d2f01532bcceb621ea06bbf4db6efac< 6e1b10df890f4663cb38af9fc1c93d36747b75af affected
a4ccc9e33d2f01532bcceb621ea06bbf4db6efac< 92c736866244340497a8a65afe2ac25354c2bf5e affected
a4ccc9e33d2f01532bcceb621ea06bbf4db6efac< a7e941a395711791c7e98d9870c6562c2c9e9ef2 affected
a4ccc9e33d2f01532bcceb621ea06bbf4db6efac< 838c917a2f16eefe68def800ebf48a2af591149a affected
a4ccc9e33d2f01532bcceb621ea06bbf4db6efac< c5b600a3c05b1a7a110d558df935a8fc8a471c79 affected
… +10 more rows
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I. Basic Information for CVE-2026-64470

Vulnerability Information
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Vulnerability Title
Bluetooth: btusb: fix use-after-free on marvell probe failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: fix use-after-free on marvell probe failure Make sure to stop any TX URBs submitted during Marvell OOB wakeup configuration on later probe failures to avoid use-after-free in the completion callback. This issue was reported by Sashiko while reviewing a fix for a wakeup source leak in the btusb probe errors paths.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于未正确停止TX URBs，可能导致释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux a4ccc9e33d2f01532bcceb621ea06bbf4db6efac ~ 1edd524de5cc8143ece9c42c466346983dc5b5ed -
Linux Linux 4.11 -

II. Public POCs for CVE-2026-64470

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III. Intelligence Information for CVE-2026-64470

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Patches & Fixes for CVE-2026-64470 (7)

Same Patch Batch · Linux · 2026-07-25 · 274 CVEs total

CVE-2026-64355 9.8 CRITICAL bpf: Reject fragmented frames in devmap
CVE-2026-64459 9.8 CRITICAL tcp: restore RCU grace period in tcp_ao_destroy_sock
CVE-2026-64303 9.8 CRITICAL spi: fsl-lpspi: terminate the RX channel on TX prepare failure path
CVE-2026-64439 9.8 CRITICAL crypto: krb5 - filter out async aead implementations at alloc
CVE-2026-64410 9.8 CRITICAL netfilter: flowtable: IPIP tunnel hardware offload is not yet support
CVE-2026-64399 9.8 CRITICAL ksmbd: add permission checks for FSCTL_DUPLICATE_EXTENTS_TO_FILE
CVE-2026-64397 9.8 CRITICAL ksmbd: serialize QUERY_DIRECTORY requests per file
CVE-2026-64391 9.8 CRITICAL ksmbd: use opener credentials for ADS I/O
CVE-2026-64387 9.8 CRITICAL smb: client: fix query directory replay double-free
CVE-2026-64386 9.8 CRITICAL smb: client: fix query_info() replay double-free
CVE-2026-64385 9.8 CRITICAL smb: client: fix double-free in SMB2_ioctl() replay
CVE-2026-64383 9.8 CRITICAL smb: client: fix double-free in SMB2_flush() replay
CVE-2026-64384 9.8 CRITICAL smb: client: fix change notify replay double-free
CVE-2026-64268 9.8 CRITICAL RDMA/siw: bound Read Response placement to the RREAD length
CVE-2026-64523 9.8 CRITICAL net/handshake: Take a long-lived file reference at submit
CVE-2026-64269 9.1 CRITICAL RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
CVE-2026-64320 9.1 CRITICAL nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page
CVE-2026-64319 9.1 CRITICAL nvmet-auth: validate reply message payload bounds against transfer length
CVE-2026-64257 9.1 CRITICAL smb: client: reject overlapping data areas in SMB2 responses
CVE-2026-64393 9.1 CRITICAL ksmbd: run set info with opener credentials

Showing top 20 of 274 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64470

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