What’s Vulnerable › Vulnerabilities

CVE-2026-98781: drm/mediatek: Fix pdev reference leak in mtk_drm_bind()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-21

Description

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix pdev reference leak in mtk_drm_bind() When the device is not the mmsys master, mtk_drm_bind() returns early after taking a reference on the disp-mutex device via of_find_device_by_node(), without ever dropping it: mtk_drm_unbind() only puts mutex_dev for the master. Drop the reference before returning from the non-master path.

Affected products

• Linux kernel: 6.4 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3753e34b73fcbe2a2edbe984614a008a261697ef
• https://git.kernel.org/stable/c/4a0ae61067671f556eeaf5ea4e59a1db63163d70
• https://git.kernel.org/stable/c/4a8f9cad0fced77b36b297c67c42730c9cb32ec6
• https://git.kernel.org/stable/c/b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3
• https://git.kernel.org/stable/c/cb3e0244514d13507c6048777e1d0277e611cf6c

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