Updated: 2025-08-20 02:31:56.794911
Description:
A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation. The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.0 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.0 | HIGH | Not Vulnerable | 2024-01-19 16:10:12 | ||
| CentOS 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-04-24 14:04:57 | ||
| CentOS 7 ELS | kernel | 3.10.0 | 7.0 | HIGH | Not Vulnerable | 2024-07-01 10:21:04 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.0 | HIGH | Not Vulnerable | 2023-08-29 04:24:37 | ||
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.0 | HIGH | Not Vulnerable | 2023-08-29 04:24:37 | ||
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-04-24 14:04:57 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-04-24 14:04:56 | ||
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.0 | HIGH | Not Vulnerable | 2023-04-21 03:19:05 | ||
| Ubuntu 16.04 ELS | linux | 4.4.0 | 7.0 | HIGH | Not Vulnerable | 2023-04-21 03:19:03 | ||
| Ubuntu 18.04 ELS | linux | 4.15.0 | 7.0 | HIGH | Not Vulnerable | 2023-08-29 09:15:35 |