CVE-2026-43343usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
- 5.5MediumCVSS base score
- 0.11%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 3 days later
· 3 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.11% · top 98% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 02832e56f88a981474ee4c7c141f46fc1b4454f4 – < a932b171554714b1bca313b853c7aa9f2930f9aa
- affected 02832e56f88a981474ee4c7c141f46fc1b4454f4 – < d7d702407b61e96286a15b6e715572f541a8d41c
- affected 02832e56f88a981474ee4c7c141f46fc1b4454f4 – < 3f5bfc550a40d7493b1cf09540ed6b412b3b82be
- affected 02832e56f88a981474ee4c7c141f46fc1b4454f4 – < 75776a055b656873319c3830fed471daef3ceb23
- affected 02832e56f88a981474ee4c7c141f46fc1b4454f4 – < cc8ec610cd14c093a19371691a7ce1ee5421e829
- affected 02832e56f88a981474ee4c7c141f46fc1b4454f4 – < 3d436670b47415da042452618fb5d8e317ab095f
- affected 02832e56f88a981474ee4c7c141f46fc1b4454f4 – < 23e4851ce348a329d974e84e828155dda9f52122
- affected 02832e56f88a981474ee4c7c141f46fc1b4454f4 – < caa27923aacd8a5869207842f2ab1657c6c0c7bc
- affected 3.11
- unaffected < 3.11
- unaffected 5.10.253 – ≤ 5.10.*
- unaffected 5.15.203 – ≤ 5.15.*
- unaffected 6.1.168 – ≤ 6.1.*
- unaffected 6.6.134 – ≤ 6.6.*
- unaffected 6.12.81 – ≤ 6.12.*
- unaffected 6.18.22 – ≤ 6.18.*
- unaffected 6.19.12 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/a932b171554714b1bca313b853c7aa9f2930f9aa (opens in a new tab)
- https://git.kernel.org/stable/c/d7d702407b61e96286a15b6e715572f541a8d41c (opens in a new tab)
- https://git.kernel.org/stable/c/3f5bfc550a40d7493b1cf09540ed6b412b3b82be (opens in a new tab)
- https://git.kernel.org/stable/c/75776a055b656873319c3830fed471daef3ceb23 (opens in a new tab)
- https://git.kernel.org/stable/c/cc8ec610cd14c093a19371691a7ce1ee5421e829 (opens in a new tab)
- https://git.kernel.org/stable/c/3d436670b47415da042452618fb5d8e317ab095f (opens in a new tab)
- https://git.kernel.org/stable/c/23e4851ce348a329d974e84e828155dda9f52122 (opens in a new tab)
- https://git.kernel.org/stable/c/caa27923aacd8a5869207842f2ab1657c6c0c7bc (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-28627 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-43343)Record last updated .