Disclosure summary
A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system.
Source-reported weakness categories
CWE-476
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2020-25639
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| linux | linux_kernel | * {"versionEndIncluding":"5.11.2"} |
| fedoraproject | fedora | 32 |
| fedoraproject | fedora | 33 |
| redhat | openshift_container_platform | 4.4 |
| redhat | openshift_container_platform | 4.5 |
| redhat | openshift_container_platform | 4.6 |
| redhat | enterprise_linux | 5.0 |
| redhat | enterprise_linux | 6.0 |
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | messaging_realtime_grid | 2.0 |
Original records & references
- NIST NVD record
- CVE Program record
- bugzilla.redhat.com — Exploit, Issue Tracking, Third Party Advisory
- lists.fedoraproject.org
- lists.fedoraproject.org
- bugzilla.redhat.com — Exploit, Issue Tracking, Third Party Advisory
- lists.fedoraproject.org
- lists.fedoraproject.org
PUBLISHED 2021-03-04T17:15:13-05:00
MODIFIED 2026-10-08T17:17:26-04:00
INGESTED 2026-10-10T20:50:20-04:00