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.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/23e4851ce348a329d974e84e828155dda9f52122 Patch
- git.kernel.org/stable/c/3d436670b47415da042452618fb5d8e317ab095f Patch
- git.kernel.org/stable/c/3f5bfc550a40d7493b1cf09540ed6b412b3b82be Patch
- git.kernel.org/stable/c/75776a055b656873319c3830fed471daef3ceb23 Patch
- git.kernel.org/stable/c/a932b171554714b1bca313b853c7aa9f2930f9aa Patch
- git.kernel.org/stable/c/caa27923aacd8a5869207842f2ab1657c6c0c7bc Patch
- git.kernel.org/stable/c/cc8ec610cd14c093a19371691a7ce1ee5421e829 Patch
- git.kernel.org/stable/c/d7d702407b61e96286a15b6e715572f541a8d41c Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.