Updated: 2022-12-09 19:52:44.64115
Description:
The root cause of this vulnerability is that the ioctl$DRM_IOCTL_MODE_DESTROY_DUMB can decrease refcount of *drm_vgem_gem_object *(created in *vgem_gem_dumb_create*) concurrently, and *vgem_gem_dumb_create *will access the freed drm_vgem_gem_object.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | MEDIUM | 4.6 |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated |
|---|---|---|---|---|---|---|---|
| CentOS 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2022-09-07 11:05:13 | |
| CentOS 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Needs Triage | 2023-09-18 17:07:22 | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2022-09-07 11:05:13 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2022-09-07 11:05:13 | |
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2022-09-07 11:05:13 | |
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2022-09-07 11:05:13 | |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 7.8 | HIGH | Released | CLSA-2022:1667414297 | 2022-11-02 17:05:48 |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.8 | HIGH | Released | CLSA-2022:1664906081 | 2022-10-04 14:02:48 |
| Ubuntu 18.04 ELS | linux | 4.15.0 | 7.8 | HIGH | Already Fixed | 2023-06-02 09:10:36 |