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CVE-2026-93193: drm/rockchip: analogix_dp: Fix OF node reference leak via auto cleanup

• 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: 2026-09-17 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: drm/rockchip: analogix_dp: Fix OF node reference leak via auto cleanup Sashiko reported a reference leak in rockchip_dp_drm_encoder_enable(), the of_get_child_by_name() function does not call of_node_put() in a symmetrical way [1]. Fix the device node reference leak by using __free(device_node) to automatically manage of_node_put() for all device nodes.

Affected products

• Linux kernel: 6.16 — 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/396a193867c6e8ee810287d6f79624144b5629e9
• https://git.kernel.org/stable/c/87e060521371257ddbb77964b66e60d80afcc7b2
• https://git.kernel.org/stable/c/887315e5d2eb87c3d6d0da9f7610bc5b3113ae30

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