Bug 2468064 (CVE-2026-43343) - CVE-2026-43343 kernel: usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
Summary: CVE-2026-43343 kernel: usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
Keywords:
Status: NEW
Alias: CVE-2026-43343
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-08 14:02 UTC by OSIDB Bzimport
Modified: 2026-05-08 19:30 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-08 14:02:41 UTC 
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.
Comment 1 Keith Grant 2026-05-08 19:28:55 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050825-CVE-2026-43343-637d@gregkh/T
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