CVE-2026-46199
Analyzed Analyzed - Analysis Complete
AMDGPU VCN4 Out-of-Bounds Read in Linux Kernel

Publication date: 2026-05-28

Last updated on: 2026-06-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg Check bounds against the end of the BO whenever we access the msg.
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Meta Information
Published
2026-05-28
Last Modified
2026-06-10
Generated
2026-06-17
AI Q&A
2026-05-28
EPSS Evaluated
2026-06-16
NVD
EUVD
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.2 (inc) to 6.6.140 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.32 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.90 (exc)
linux linux_kernel From 6.19 (inc) to 7.0.9 (exc)
linux linux_kernel From 5.13 (inc) to 6.1.175 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability exists in the Linux kernel, specifically in the drm/amdgpu/vcn4 component. It involves out-of-bounds (OOB) reads when parsing decode messages (dec msg). The issue arises because the code did not properly check bounds against the end of the buffer object (BO) when accessing the message, which could lead to reading memory beyond the intended limits.

Impact Analysis

An out-of-bounds read vulnerability can potentially lead to information disclosure or cause system instability. By reading memory beyond the intended buffer, an attacker might access sensitive data or cause unexpected behavior in the system, which could be exploited depending on the context and privileges.

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