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Medium 4.4Published Mar 4, 2021
CVE-2020-25639A 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.
Updated under an hour ago ()
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It affects linux_kernel and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 4.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | through 5.11.2 | NVD |
fedoraproject fedora fedoraproject:fedora | 32; 33 | NVD |
redhat openshift_container_platform redhat:openshift_container_platform | 4.4; 4.5; 4.6 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 5.0; 6.0; 7.0; 8.0 | NVD |
redhat messaging_realtime_grid redhat:messaging_realtime_grid | 2.0 | NVD |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1876995x-refsource-misc
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HE4CT3NL6OEBRRBUKHIX63GLNVOWCVRW/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SUCBCKRHWP3UD2AVVYQJE7BIJEMCMXW5/vendor-advisory, x-refsource-fedora
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.