linux: The root cause of this vulnerability is that the ioctl$DRM_IOCTL_MODE_DESTROY_DUMB can decrease refcount of *drm_vgem...
CVE-2022-1419 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-1419, released June 2, 2022. It is not reported as exploited. Patch Radar priority: High.
The root cause of this vulnerability is that the ioctl$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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.5.13-1 | DEBIAN-CVE-2022-1419 | Jun 2, 2022 |
| linux · Debian 13.5 (trixie) | 5.5.13-1 | DEBIAN-CVE-2022-1419 | Jun 2, 2022 |
| linux · Debian 14 | 5.5.13-1 | DEBIAN-CVE-2022-1419 | Jun 2, 2022 |
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