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CVE-2022-49672
net: tun: unlink NAPI from device on destruction
High7.8EPSS 0.30%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device destruction. NAPIs live in struct tun_file which can get destroyed before the netdev so we have to del them explicitly. The current code is missing deleting the NAPI if the queue was detached first.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 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)
- 0.30% · top 77% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 943170998b200190f99d3fe7e771437e2c51f319 – < 82e729aee59acefe135fceffadcbc5b86dd4f1b9
- affected 943170998b200190f99d3fe7e771437e2c51f319 – < a8cf919022373c97a84fe596bbea544f909c485d
- affected 943170998b200190f99d3fe7e771437e2c51f319 – < bec1be0a745ab420718217e3e0d9542a75108989
- affected 943170998b200190f99d3fe7e771437e2c51f319 – < 8145f77d38de4f88b8a69e1463f5c09ba189d77c
- affected 943170998b200190f99d3fe7e771437e2c51f319 – < 8661d4b8faa2f7ee7a559969c0a7c57f077b1728
- affected 943170998b200190f99d3fe7e771437e2c51f319 – < 3b9bc84d311104906d2b4995a9a02d7b7ddab2db
- affected 4.15
- unaffected < 4.15
- unaffected 4.19.251 – ≤ 4.19.*
- unaffected 5.4.204 – ≤ 5.4.*
- unaffected 5.10.129 – ≤ 5.10.*
- unaffected 5.15.53 – ≤ 5.15.*
- unaffected 5.18.10 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References (6)
- https://git.kernel.org/stable/c/82e729aee59acefe135fceffadcbc5b86dd4f1b9 (opens in a new tab)
- https://git.kernel.org/stable/c/a8cf919022373c97a84fe596bbea544f909c485d (opens in a new tab)
- https://git.kernel.org/stable/c/bec1be0a745ab420718217e3e0d9542a75108989 (opens in a new tab)
- https://git.kernel.org/stable/c/8145f77d38de4f88b8a69e1463f5c09ba189d77c (opens in a new tab)
- https://git.kernel.org/stable/c/8661d4b8faa2f7ee7a559969c0a7c57f077b1728 (opens in a new tab)
- https://git.kernel.org/stable/c/3b9bc84d311104906d2b4995a9a02d7b7ddab2db (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)
- 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-2022-49672)Record last updated .