Missing error check in Linux kernel MediaTek DRM overlay adaptor
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
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
The Linux kernel drm/mediatek driver from 6.4 is affected. The platform_device_register_data() call can return an error pointer that the driver uses without a check, so an invalid pointer is stored and passed to other driver code, which can crash the kernel.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform device platform_device_register_data() can fail and return an ERR_PTR, but the return value is used without checking, leading to an invalid pointer being stored in ddp_comp[].dev and passed to component_match_add() and mtk_ddp_comp_init(), which could result in a kernel crash. Add an IS_ERR() check to jump to the error handling path on failure.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
Update the Linux kernel to 6.6.160, 6.12.113, 6.18.56, 7.2.10 or 7.3, whichever matches your stable branch.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Linux (Linux) Fixed in 6.6.160, 6.12.113, 6.18.56, 7.2.10, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-18 Threatist record created from CVE-2026-98783
- 2026-10-18 Alias added: GHSA-gxv2-4p27-m9pp
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/[email protected], Linux/Linux@f0ffb09cf1bf2a0f301f51fb45371c09dc78fcd0 · CNA
- 2026-10-21 1 new reference · CNA
- 2026-10-24 Affected versions changed · Red Hat
- 2026-10-24 CVSS score added · Red Hat
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/f0ffb09cf1bf2a0f301f51fb45371c09dc78fcd0
- https://git.kernel.org/stable/c/4acac370aad2d4895a82f40b2f03e9ef70eecaa6
- https://git.kernel.org/stable/c/88f8a92dcb0cb154774595dee7226458de4cbd38
- https://git.kernel.org/stable/c/aeef8a8537bcfb26689edb36ed905b8b2873001c
- https://git.kernel.org/stable/c/bce7698e2e6565bb765bd0522337f29f5f312624
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Sources
- CVE-2026-98783 · CVE Program
- CVE-2026-98783 · NVD
- FIRST EPSS
- GHSA-gxv2-4p27-m9pp · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98783 · Red Hat security data · CC BY 4.0
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