CVE-2026-43343: usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: fsubset: Fix unbalanced refcnt in gethfree
gethalloc() increments the reference count, but gethfree() fails to decrement it. This prevents the configuration of attributes via configfs after unlinking the function.
Decrement the reference count in gethfree() to ensure proper cleanup.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-43343?
CVE-2026-43343 is classified as a high severity vulnerability due to the unbalanced reference count that could lead to potential memory leaks.
How do I fix CVE-2026-43343?
To fix CVE-2026-43343, update the Linux kernel to the latest version where this vulnerability has been patched.
What is the impact of CVE-2026-43343 on affected systems?
The impact of CVE-2026-43343 on affected systems may include memory leaks which can degrade system performance over time.
Which versions of the Linux kernel are affected by CVE-2026-43343?
CVE-2026-43343 affects multiple versions of the Linux kernel where the unbalanced reference count issue exists in the usb gadget subsystem.
Is CVE-2026-43343 being actively exploited in the wild?
As of now, there are no confirmed reports of CVE-2026-43343 being actively exploited in the wild.