CVE-2026-68250
Received Received - Intake

AMDGPU SDMA5.2 Kernel Bypass in Linux

Publication date: 2026-08-10

Last updated on: 2026-08-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/sdma5.2: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit ae658afc7f47f6147371ec42cc6b1a793dfdb5af)

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Meta Information

Published
2026-08-10
Last Modified
2026-08-10
Generated
2026-08-10
AI Q&A
2026-08-10
EPSS Evaluated
N/A
NVD
CVE-2026-68250
EUVD
EUVD-2026-55351

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability involves a flaw in the Linux kernel's AMD GPU driver (specifically the sdma5.2 component). The issue is that the kernel uses BUG_ON() to handle certain error conditions, which causes the system to crash entirely. The fix replaces BUG_ON() with WARN_ON(), which only issues a warning without crashing the kernel.

Detection Guidance

This vulnerability is specific to the Linux kernel's AMDGPU SDMA5.2 driver. Detection requires checking kernel logs for WARN_ON() or BUG_ON() related to amdgpu/sdma5.2. Use commands like dmesg | grep -i amdgpu or journalctl -k | grep -i amdgpu to inspect kernel messages.

Impact Analysis

This vulnerability could lead to system crashes when specific error conditions occur in the AMD GPU driver. Users may experience unexpected reboots or system freezes while using graphics-intensive applications.

Mitigation Strategies

Update the Linux kernel to the latest stable version that includes the fix for this issue. Monitor kernel logs for any related warnings after updating. If the issue persists, consider disabling the AMDGPU SDMA5.2 driver or consult your distribution's support channels.

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