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CVE-2021-47403
ipack: ipoctal: fix module reference leak
High7.1EPSS 0.25%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix module reference leak A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
| NVDNVD · Analyzed | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.25% · top 84% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Weakness
Affected products
- affected 82a82340bab6c251e0705339f60763718eaa2a22 – < 31398849b84ebae0d43a1cf379cb9895597f221a
- affected 82a82340bab6c251e0705339f60763718eaa2a22 – < c0adb5a947dec6cff7050ec56d78ecd3916f9ce6
- affected 82a82340bab6c251e0705339f60763718eaa2a22 – < dde4c1429b97383689f755ce92b4ed1e84a9c92b
- affected 82a82340bab6c251e0705339f60763718eaa2a22 – < 9c5b77a7ffc983b2429ce158b50497c5d3c86a69
- affected 82a82340bab6c251e0705339f60763718eaa2a22 – < 3253c87e1e5bc0107aab773af2f135ebccf38666
- affected 82a82340bab6c251e0705339f60763718eaa2a22 – < 7cea848678470daadbfdaa6a112b823c290f900c
- affected 82a82340bab6c251e0705339f60763718eaa2a22 – < 811178f296b16af30264def74c8d2179a72d5562
- affected 82a82340bab6c251e0705339f60763718eaa2a22 – < bb8a4fcb2136508224c596a7e665bdba1d7c3c27
- affected 3.18
- unaffected < 3.18
- unaffected 4.4.286 – ≤ 4.4.*
- unaffected 4.9.285 – ≤ 4.9.*
- unaffected 4.14.249 – ≤ 4.14.*
- unaffected 4.19.209 – ≤ 4.19.*
- unaffected 5.4.151 – ≤ 5.4.*
- unaffected 5.10.71 – ≤ 5.10.*
- unaffected 5.14.10 – ≤ 5.14.*
- unaffected 5.15 – ≤ *
References (8)
- https://git.kernel.org/stable/c/31398849b84ebae0d43a1cf379cb9895597f221a (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/c0adb5a947dec6cff7050ec56d78ecd3916f9ce6 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/dde4c1429b97383689f755ce92b4ed1e84a9c92b (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/9c5b77a7ffc983b2429ce158b50497c5d3c86a69 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/3253c87e1e5bc0107aab773af2f135ebccf38666 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/7cea848678470daadbfdaa6a112b823c290f900c (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/811178f296b16af30264def74c8d2179a72d5562 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/bb8a4fcb2136508224c596a7e665bdba1d7c3c27 (opens in a new tab)x_transferred
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)
- 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://trackcve.app/cve/CVE-2021-47403)Record last updated .