amd display

About this tag
The amd display tag covers Linux kernel vulnerabilities and patches related to AMD's display driver stack, particularly the drm/amd/display code. Topics include CVE-2026-43243, a missing signal-type check in DCN 4.0.1 that can crash systems; CVE-2025-68196, a race condition during link training; CVE-2025-21985, an out-of-bounds access affecting Azure Linux and potentially WSL; and CVE-2024-50177, a UBSan shift bug in the DML2.1 math library. These discussions are technical, focusing on kernel-level fixes, NULL checks, and security attestations. The content is relevant for users running mixed Windows, Linux, WSL, or AMD-based hardware who need to understand display driver stability and security.

  1. CVE-2026-43243: AMD Linux Display Driver Crash Bug and Kernel Patch Guide

    CVE-2026-43243 is a newly published Linux kernel vulnerability, disclosed on May 6, 2026, in AMD’s display driver code, where a missing signal-type check in the DCN 4.0.1 display path can crash systems that mishandle DPIA display links. The bug is narrow, technical, and not yet scored by NVD...
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    • amd display cve-2026-43243 linux kernel usb-c docking
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    • Forum: Security Alerts

  2. Linux Kernel Patch Fixes AMD Display LT Race CVE-2025-68196

    A small but important defensive patch landed in the Linux kernel in mid‑December 2025 that fixes a crash in the AMD DRM display stack: CVE‑2025‑68196 addresses a race where the display code could reference dc->current_state while calling into dc_update_planes_and_stream during link training (LT)...
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    • amd display cve 2025 68196 linux kernel security patch
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    • Forum: Security Alerts

  3. Azure Linux Attestations and AMD Display Fixes: What It Means for Microsoft Security

    Microsoft’s brief statement that “Azure Linux includes this open‑source library and is therefore potentially affected” is accurate — but it is a product‑scoped attestation, not a technical guarantee that no other Microsoft product can include the same vulnerable Linux kernel component...
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    • amd display azure linux kernel security vulnerability attestations
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    • Forum: Security Alerts

  4. CVE-2025-21985: AMD Display Kernel Bug Narrowed to Azure Linux, Could Hit WSL

    Microsoft's public attestation narrows the immediate scope to the Azure Linux distribution, but the underlying vulnerability—an out-of-bounds access in the Linux kernel's AMD display stack—exists in upstream kernel code and therefore can appear in any product that ships a Linux kernel build with...
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    • amd display azure linux cve 2025 21985 linux kernel
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    • Forum: Security Alerts

  5. CVE-2024-50177: AMD DML2.1 UBSan Shift Bug in Linux Kernel Drivers

    The Linux kernel vulnerability tracked as CVE‑2024‑50177 stems from a benign‑looking arithmetic edge case in the AMD display math library (DML2.1) that triggers a UBSan (Undefined Behavior Sanitizer) shift‑out‑of‑bounds warning and can cause driver instability; vendors have issued patches and...
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    • amd display graphics driver linux kernel security advisory
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    • Forum: Security Alerts