CVE-2022-1419

HIGH

Linux Kernel < 5.6 - Use-After-Free in VGEM DRM DUMB Buffer Handling

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2077560
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2022/dsa-5173

Scores

CVSS v3 7.8
EPSS 0.0007
EPSS Percentile 21.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (3)
debian/debian_linux 10.0
linux/linux_kernel 5.6 (2 CPE variants)
linux/linux_kernel < 5.6
Published Jun 02, 2022
Tracked Since Feb 18, 2026