CVE-2026-64144: Linux kernel · Bluetooth: btmtk: fix urb->setup_packet leak in error paths
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in ecd8d2531766641958a667829907204066cfb51a : update Linux kernel when convenient.
Data as of 30 Oct 2026, 13:33 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- Patch
- Available – fixed in ecd8d2531766641958a667829907204066cfb51a, dd1dda6b8d6e1f4376a5b3055a04f0ecbdb4d6bd, a0f5268c77eb73f84ba7c210ddfc54b1c73ff80c +3
Exploitation evidence
Disclosed: evidence found.
CVE published 19 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available and has been applied in the Linux kernel source code commits referenced. Users should update their Linux kernel to a version including these fixes to remediate the issue.
Description
A memory leak vulnerability in the Linux kernel Bluetooth driver btmtk was fixed. The issue involved the setup_packet of a control urb not being freed in certain error paths, specifically when usb_submit_urb fails or when the submitted urb is killed. This could lead to resource leaks affecting system stability.
References
- git.kernel.org/stable/c/ecd8d2531766641958a667829907204066cfb51a (opens in a new tab)
- git.kernel.org/stable/c/2a1905730e0c771b999906a7b509722f795563c6 (opens in a new tab)
- git.kernel.org/stable/c/68c027c2003b0a8a1439d0301c59c6fd1eb3b844 (opens in a new tab)
- git.kernel.org/stable/c/a0f5268c77eb73f84ba7c210ddfc54b1c73ff80c (opens in a new tab)
- git.kernel.org/stable/c/0d2572bafea33c7cd1d77c6a25f25ff31a432482 (opens in a new tab)
- git.kernel.org/stable/c/dd1dda6b8d6e1f4376a5b3055a04f0ecbdb4d6bd (opens in a new tab)