CVE-2026-43343
usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
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.
INFO
Published Date :
May 8, 2026, 2:16 p.m.
Last Modified :
May 8, 2026, 2:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-43343
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Decrement the reference count in geth_free().
- Apply the patch to the Linux kernel.
- Update the affected Linux kernel version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-43343.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-43343 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-43343
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-43343 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-43343 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 08, 2026
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/23e4851ce348a329d974e84e828155dda9f52122 Added Reference https://git.kernel.org/stable/c/3d436670b47415da042452618fb5d8e317ab095f Added Reference https://git.kernel.org/stable/c/3f5bfc550a40d7493b1cf09540ed6b412b3b82be Added Reference https://git.kernel.org/stable/c/75776a055b656873319c3830fed471daef3ceb23 Added Reference https://git.kernel.org/stable/c/a932b171554714b1bca313b853c7aa9f2930f9aa Added Reference https://git.kernel.org/stable/c/caa27923aacd8a5869207842f2ab1657c6c0c7bc Added Reference https://git.kernel.org/stable/c/cc8ec610cd14c093a19371691a7ce1ee5421e829 Added Reference https://git.kernel.org/stable/c/d7d702407b61e96286a15b6e715572f541a8d41c