CVE-2022-4696
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-4696
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-4696.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-4696
- Aliases
-
- A-264692298
- ASB-A-264692298
- Downstream
- Published
- 2023-01-11T13:15:09Z
- Modified
- 2025-08-09T19:01:27Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling iosplice on specific files will call the getuts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above
- References