CVE-2022-49641
sysctl: Fix data races in proc_douintvec().
MEDIUM 4.7
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec(). A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_douintvec() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.
Weaknesses (CWE)
- CWE-362 — Race Condition
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| CVSS 3.1 | MEDIUM 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | MEDIUM 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2022-54591
- GCVE · GCVE-0-2022-49641
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:*:*:*:*:*:*:*:*≥ 4.4.24 < 4.5cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.7.7 < 5.10.132cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.56cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.18.13cpe: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:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected e7d316a02f683864a12389f8808570e37fb90aa3 < d5d54714e329f646bd7af4994fc427d88ee68936 ; affected e7d316a02f683864a12389f8808570e37fb90aa3 < d335db59f7fb3353f56e52371f1ee796ae9c8f09 ; affected e7d316a02f683864a12389f8808570e37fb90aa3 < 630c76850d554d7140232e71b5d1663e88cffb54 ; affected e7d316a02f683864a12389f8808570e37fb90aa3 < 4762b532ec9539755aab61445d5da6e1926ccb99 ; affected 70cd763eb1574cac07138be91f474a661e02d694 ; affected f4cea51e9a3d536e2ca2b74a958f7c0b4ea733c3 |
| Linux · Linux | affected 4.8 ; unaffected 0 < 4.8 ; unaffected 5.10.132 ≤ 5.10.* ; unaffected 5.15.56 ≤ 5.15.* ; unaffected 5.18.13 ≤ 5.18.* ; unaffected 5.19 ≤ * |
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 |