CVE-2026-43343: Linux kernel · usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 11 Nov 2026, 23:07 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 8 May 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 11 Nov 2026.
Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_subset: Fix unbalanced refcnt in geth_free geth_alloc() increments the reference count, but geth_free() fails to decrement it. This prevents the configuration of attributes via configfs after unlinking the function. Decrement the reference count in geth_free() to ensure proper cleanup.
References
- git.kernel.org/stable/c/a932b171554714b1bca313b853c7aa9f2930f9aa (opens in a new tab)
- git.kernel.org/stable/c/d7d702407b61e96286a15b6e715572f541a8d41c (opens in a new tab)
- git.kernel.org/stable/c/3f5bfc550a40d7493b1cf09540ed6b412b3b82be (opens in a new tab)
- git.kernel.org/stable/c/75776a055b656873319c3830fed471daef3ceb23 (opens in a new tab)
- git.kernel.org/stable/c/cc8ec610cd14c093a19371691a7ce1ee5421e829 (opens in a new tab)
- git.kernel.org/stable/c/3d436670b47415da042452618fb5d8e317ab095f (opens in a new tab)
- git.kernel.org/stable/c/23e4851ce348a329d974e84e828155dda9f52122 (opens in a new tab)
- git.kernel.org/stable/c/caa27923aacd8a5869207842f2ab1657c6c0c7bc (opens in a new tab)