# CVE-2024-43886: drm/amd/display: Add null check in resource_log_pipe_topology_update

CVE-2024-43886 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2024-43886, released August 26, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-43886
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 26, 2024
- Weakness: NULL Pointer Dereference
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43886

## Description

In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Add null check in resource_log_pipe_topology_update  [WHY] When switching from "Extend" to "Second Display Only" we sometimes call resource_get_otg_master_for_stream on a stream for the eDP, which is disconnected. This leads to a null pointer dereference.  [HOW] Added a null check in dc_resource.c/resource_log_pipe_topology_update.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kernel-coco sles 15.6 | 6.4.0-15061.6.coco15sp6.1 | [SUSE-SU-2024:3553-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3553-1.md) | Oct 8, 2024 |
| Linux | kernel-coco_debug sles 15.6 | 6.4.0-15061.6.coco15sp6.1 | [SUSE-SU-2024:3553-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3553-1.md) | Oct 8, 2024 |
| Linux | kernel-source-coco sles 15.6 | 6.4.0-15061.6.coco15sp6.1 | [SUSE-SU-2024:3553-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3553-1.md) | Oct 8, 2024 |
| Linux | kernel-syms-coco sles 15.6 | 6.4.0-15061.6.coco15sp6.1 | [SUSE-SU-2024:3553-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3553-1.md) | Oct 8, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.10.6-1 | [DEBIAN-CVE-2024-43886](https://patchblox.com/security/data/fix/linux/debian-cve-2024-43886.md) | Aug 26, 2024 |
| Linux | linux Debian 14 | 6.10.6-1 | [DEBIAN-CVE-2024-43886](https://patchblox.com/security/data/fix/linux/debian-cve-2024-43886.md) | Aug 26, 2024 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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