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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-05-31T17:59:18

Updated: 2024-08-03T00:03:06.207Z

Reserved: 2022-04-20T00:00:00

Link: CVE-2022-1419

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2022-06-02T14:15:32.577

Modified: 2022-12-09T18:41:11.500

Link: CVE-2022-1419

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-04-27T00:00:00Z

Links: CVE-2022-1419 - Bugzilla