EUVD-2026-93109
GHSA-mrf5-p4fw-fr76
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Alert meAnalysisCVE.org
In the Linux kernel, the following vulnerability has been resolved:
drm/gud: fix out-of-bounds write in gud_plane_atomic_check()
The plane property loop uses req->properties[num_properties + i] as write index while simultaneously incrementing num_properties inside the loop. At iteration i, num_properties has also incremented by i, so the write is done at initial_num_properties + 2*i, skipping every other index and advancing by 2 per iteration.
With just 2 connector and 32 plane properties the last write happens at index 64, one slot past the end of the 64-slot (indices 0-63) allocation. A USB device can trigger OOB by advertising the maximum number of properties.
Fix by dropping the redundant + i; num_properties is already the correct running index, as gud_connector_fill_properties() fills the preceding slots.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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How this decision was reached
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Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
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