CVE-2022-50234
io_uring/af_unix: defer registered files gc to io_uring release
HIGH 7.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/af_unix: defer registered files gc to io_uring release Instead of putting io_uring's registered files in unix_gc() we want it to be done by io_uring itself. The trick here is to consider io_uring registered files for cycle detection but not actually putting them down. Because io_uring can't register other ring instances, this will remove all refs to the ring file triggering the ->release path and clean up with io_ring_ctx_free(). [axboe: add kerneldoc comment to skb, fold in skb leak fix]
References
- https://git.kernel.org/stable/c/04df9719df1865f6770af9bc7880874af0e594b2
- https://git.kernel.org/stable/c/c378c479c5175833bb22ff71974cda47d7b05401
- https://git.kernel.org/stable/c/813d8fe5d30388f73a21d3a2bf46b0a1fd72498c
- https://git.kernel.org/stable/c/b4293c01ee0d0ecdd3cb5801e13f62271144667a
- https://git.kernel.org/stable/c/75e94c7e8859e58aadc15a98cc9704edff47d4f2
- https://git.kernel.org/stable/c/0091bfc81741b8d3aeb3b7ab8636f911b2de6e80
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 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-55516
- GCVE · GCVE-0-2022-50234
CERT-FR advisories
- CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0316 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0921 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0895 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.1 < 5.4.220cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.150cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.75cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.19.17cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.0 < 6.0.3
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 6b06314c47e141031be043539900d80d2c7ba10f < 04df9719df1865f6770af9bc7880874af0e594b2 ; affected 6b06314c47e141031be043539900d80d2c7ba10f < c378c479c5175833bb22ff71974cda47d7b05401 ; affected 6b06314c47e141031be043539900d80d2c7ba10f < 813d8fe5d30388f73a21d3a2bf46b0a1fd72498c ; affected 6b06314c47e141031be043539900d80d2c7ba10f < b4293c01ee0d0ecdd3cb5801e13f62271144667a ; affected 6b06314c47e141031be043539900d80d2c7ba10f < 75e94c7e8859e58aadc15a98cc9704edff47d4f2 ; affected 6b06314c47e141031be043539900d80d2c7ba10f < 0091bfc81741b8d3aeb3b7ab8636f911b2de6e80 |
| Linux · Linux | affected 5.1 ; unaffected 0 < 5.1 ; unaffected 5.4.220 ≤ 5.4.* ; unaffected 5.10.150 ≤ 5.10.* ; unaffected 5.15.75 ≤ 5.15.* ; unaffected 5.19.17 ≤ 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 |