CVE-2026-43343
Published: May 21, 2026Last modified: May 21, 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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.168-r0) |
| 25 LTS | linux-lts | Fixed (6.12.81-r0) | |
| Stream | linux-lts | Fixed (6.12.85-r0) |
References
- https://git.kernel.org/stable/c/23e4851ce348a329d974e84e828155dda9f52122
- https://git.kernel.org/stable/c/3d436670b47415da042452618fb5d8e317ab095f
- https://git.kernel.org/stable/c/3f5bfc550a40d7493b1cf09540ed6b412b3b82be
- https://git.kernel.org/stable/c/75776a055b656873319c3830fed471daef3ceb23
- https://git.kernel.org/stable/c/a932b171554714b1bca313b853c7aa9f2930f9aa
- https://git.kernel.org/stable/c/caa27923aacd8a5869207842f2ab1657c6c0c7bc
- https://git.kernel.org/stable/c/cc8ec610cd14c093a19371691a7ce1ee5421e829
- https://git.kernel.org/stable/c/d7d702407b61e96286a15b6e715572f541a8d41c