SB2026050944 - Improper resource shutdown or release in Linux kernel gadget function driver
Published: May 9, 2026
Security Bulletin ID
SB2026050944
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper resource shutdown or release (CVE-ID: CVE-2026-43343)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in geth_free in the usb gadget f_subset function when unlinking the function and reconfiguring attributes via configfs. A local user can unlink the function and attempt to configure attributes via configfs to cause a denial of service.
Remediation
Install update from vendor's website.
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