NULL return instead of ERR_PTR in Linux kernel virtio-gpu framebuffer
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
The Linux kernel from 4.2 is affected in the virtio-gpu DRM driver. The virtio_gpu_user_framebuffer_create() function returns NULL instead of an error pointer, so its caller drm_mode_addfb2() can dereference NULL.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Description from the CNA
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create() Smatch complains that returning a NULL here will lead to a NULL pointer dereference in drm_mode_addfb2(). Return an error pointer instead.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
The Linux kernel is fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7 and 7.3. Red Hat lists no fix available for Red Hat Enterprise Linux 8, 9 and 10 and Red Hat OpenShift Container Platform 4 and 5.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-14 Threatist record created from CVE-2026-98404
- 2026-10-14 Alias added: GHSA-rmwq-mp73-r282
- 2026-10-16 Affected versions changed · Red Hat
- 2026-10-16 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/975f3cf302bb7d7336df4c630a7c07e12780ad10
- https://git.kernel.org/stable/c/07de0b31dd64094cd7d25729beaf2ecae74daa72
- https://git.kernel.org/stable/c/5eda6cda0031ba17559d56882353be39e568ec09
- https://git.kernel.org/stable/c/3fe8a33715265ecb24ca0bcd0a575c926da4277c
- https://git.kernel.org/stable/c/974845d2535a250b180e62f9ed50284f312c01a3
- https://git.kernel.org/stable/c/45dc2788a5b0e1e2824d1f98af521bd3acc340d7
- https://git.kernel.org/stable/c/f1050a7d365283678b253828739d3866ae546a72
- https://git.kernel.org/stable/c/94579f24e2b526a04eb41050af0ba018c6f528e7
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Sources
- CVE-2026-98404 · CVE Program
- CVE-2026-98404 · NVD
- FIRST EPSS
- GHSA-rmwq-mp73-r282 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98404 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences