PT-2026-38994 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-21 · CVE-2026-43343

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An unbalanced reference count occurs in the f subset USB gadget driver. The geth alloc() function increments the reference count, but the geth free() function fails to decrement it. This issue prevents the configuration of attributes via configfs after the function has been unlinked.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-43343

Affected Products

Linux Kernel

References · 20

• https://git.kernel.org/stable/c/caa27923aacd8a5869207842f2ab1657c6c0c7bc · Patch
• https://git.kernel.org/stable/c/3d436670b47415da042452618fb5d8e317ab095f · Patch
• https://git.kernel.org/stable/c/23e4851ce348a329d974e84e828155dda9f52122 · Patch
• https://git.kernel.org/stable/c/3f5bfc550a40d7493b1cf09540ed6b412b3b82be · Patch
• https://ubuntu.com/security/CVE-2026-43343 · Vendor Advisory
• https://git.kernel.org/stable/c/cc8ec610cd14c093a19371691a7ce1ee5421e829 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-43343 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-43343 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43343 · Security Note
• https://git.kernel.org/stable/c/d7d702407b61e96286a15b6e715572f541a8d41c · Patch
• https://git.kernel.org/stable/c/a932b171554714b1bca313b853c7aa9f2930f9aa · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43343 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-43343 · Vendor Advisory
• https://git.kernel.org/stable/c/75776a055b656873319c3830fed471daef3ceb23 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43343 · Vendor Advisory