CVE-2026-97493
Received Received - Intake

Buffer Overflow in AMDGPU Linux Kernel Driver

Publication date: 2026-09-24

Last updated on: 2026-09-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Bound GPIO I2C table entry count from VBIOS Reject undersized tables and cap the derived entry count to AMDGPU_MAX_I2C_BUS so we do not overrun adev->i2c_bus[] or walk an absurd number of entries on corrupt size fields.

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Meta Information

Published
2026-09-24
Last Modified
2026-09-24
Generated
2026-09-24
AI Q&A
2026-09-24
EPSS Evaluated
N/A
NVD
CVE-2026-97493
EUVD
EUVD-2026-86091

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 in the Linux kernel involves improper handling of GPIO I2C table entries from the VBIOS in the AMDGPU driver. The issue occurs when undersized tables are not rejected, leading to potential overruns in the i2c_bus array or excessive processing of corrupt entries.

Detection Guidance

This vulnerability is specific to the Linux kernel's AMDGPU driver and involves GPU I2C table handling. Detection requires checking kernel logs for AMDGPU-related errors or warnings, particularly during GPU initialization. Commands like dmesg | grep -i amdgpu or journalctl -k | grep -i amdgpu may reveal issues with undersized I2C tables.

Impact Analysis

This vulnerability could cause system instability, crashes, or unexpected behavior due to memory corruption or excessive resource usage. It may also allow privilege escalation if exploited by a local attacker.

Mitigation Strategies

Update the Linux kernel to the latest stable version that includes the fix for this CVE. Monitor AMDGPU driver logs for errors after updating. If using a custom kernel, ensure the patch for this issue is applied.

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