CVE-2022-49672
net: tun: unlink NAPI from device on destruction
HIGH 7.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
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.
References
- https://git.kernel.org/stable/c/82e729aee59acefe135fceffadcbc5b86dd4f1b9
- https://git.kernel.org/stable/c/a8cf919022373c97a84fe596bbea544f909c485d
- https://git.kernel.org/stable/c/bec1be0a745ab420718217e3e0d9542a75108989
- https://git.kernel.org/stable/c/8145f77d38de4f88b8a69e1463f5c09ba189d77c
- https://git.kernel.org/stable/c/8661d4b8faa2f7ee7a559969c0a7c57f077b1728
- https://git.kernel.org/stable/c/3b9bc84d311104906d2b4995a9a02d7b7ddab2db
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-54561
- GCVE · GCVE-0-2022-49672
CERT-FR advisories
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0336 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0252 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.251cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.204cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.129cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.53cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.18.10cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 943170998b200190f99d3fe7e771437e2c51f319 < 82e729aee59acefe135fceffadcbc5b86dd4f1b9 ; affected 943170998b200190f99d3fe7e771437e2c51f319 < a8cf919022373c97a84fe596bbea544f909c485d ; affected 943170998b200190f99d3fe7e771437e2c51f319 < bec1be0a745ab420718217e3e0d9542a75108989 ; affected 943170998b200190f99d3fe7e771437e2c51f319 < 8145f77d38de4f88b8a69e1463f5c09ba189d77c ; affected 943170998b200190f99d3fe7e771437e2c51f319 < 8661d4b8faa2f7ee7a559969c0a7c57f077b1728 ; affected 943170998b200190f99d3fe7e771437e2c51f319 < 3b9bc84d311104906d2b4995a9a02d7b7ddab2db |
| Linux · Linux | affected 4.15 ; unaffected 0 < 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.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |