What’s Vulnerable › Vulnerabilities

CVE-2026-64144: Bluetooth: btmtk: fix urb->setup_packet leak in error paths

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-19 · updated 2026-10-30
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: fix urb->setup_packet leak in error paths The setup_packet of control urb is not freed if usb_submit_urb fails or the submitted urb is killed. Add free in these two paths.

Affected products

• Linux kernel: from 5.3 before 6.6.142; from 6.7 before 6.12.92; from 6.13 before 6.18.34; from 6.19 before 7.0.11; 7.1-rc1, 7.1-rc2, 7.1-rc3, 7.1-rc4 — fixed in 6.6.142, 6.12.92, 6.18.34, 7.0.11
• Linux: 5.3 — fixed in 7.1

How to fix

Upgrade to a fixed version: Linux kernel 6.6.142, 6.12.92, 6.18.34, 7.0.11; Linux 7.1. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0d2572bafea33c7cd1d77c6a25f25ff31a432482
• https://git.kernel.org/stable/c/2a1905730e0c771b999906a7b509722f795563c6
• https://git.kernel.org/stable/c/68c027c2003b0a8a1439d0301c59c6fd1eb3b844
• https://git.kernel.org/stable/c/a0f5268c77eb73f84ba7c210ddfc54b1c73ff80c
• https://git.kernel.org/stable/c/dd1dda6b8d6e1f4376a5b3055a04f0ecbdb4d6bd
• https://git.kernel.org/stable/c/ecd8d2531766641958a667829907204066cfb51a

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