TI-2026-33681 Aliases CVE-2026-45956 GHSA-pwfh-32f2-c83x

drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()

LOW 33CWE-416Published 2026-05-27 · Updated 2026-10-21

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() vidi_connection_ioctl() retrieves the driver_data from drm_dev->dev to obtain a struct vidi_context pointer. However, drm_dev->dev is the exynos-drm master device, and the driver_data contained therein is not the vidi component device, but a completely different device. This can lead to various bugs, ranging from null pointer dereferences and garbage value accesses to, in unlucky cases, out-of-bounds errors, use-after-free errors, and more. To resolve this issue, we need to store/delete the vidi device pointer in exynos_drm_private->vidi_dev during bind/unbind, and then read this exynos_drm_private->vidi_dev within ioctl() to obtain the correct struct vidi_context pointer.

Why it matters now

EPSS 0.00126 2nd percentileScored 2026-11-07

Fix Fixed Linux (Linux): 5.10.253, 5.15.203, 6.1.167 +5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	4.3 and later	5.10.253, 5.15.203, 6.1.167, 6.6.130, 6.12.114, 6.18.14, 6.19.4, 7.0	Patch available	CNA

Linux VendorLinux Affected 4.3 and later Fixed in 5.10.253, 5.15.203, 6.1.167, 6.6.130, 6.12.114, 6.18.14, 6.19.4, 7.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	4.3 to before 5.10.253; 5.11 to before 5.15.203; 5.16 to before 6.1.167; 6.2 to before 6.6.130; 6.7 to before 6.18.14; 6.19 to before 6.19.4	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.3 to before 5.10.253; 5.11 to before 5.15.203; 5.16 to before 6.1.167; 6.2 to before 6.6.130; 6.7 to before 6.18.14; 6.19 to before 6.19.4 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 5.10.253, 5.15.203, 6.1.167, 6.6.130, 6.12.114, 6.18.14, 6.19.4, 7.0

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Not affected: 5 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

Timeline

2026-10-02 Threatist record created from CVE-2026-45956
2026-10-03 Alias added: GHSA-pwfh-32f2-c83x
2026-10-20 Affected versions changed · Red Hat
2026-10-21 Fix available: Linux/[email protected], Linux/Linux@e1aed617eb80b49eac2f8c7bb7a0990f641dd59b · CNA
2026-10-21 1 new reference · CNA

References

Patch 7

Other 1

https://git.kernel.org/stable/c/e1aed617eb80b49eac2f8c7bb7a0990f641dd59b

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Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences