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Linux Kernel AMD GPU Off-By-One Vulnerability in DMUB IRQ Handling

Vulnerability

An off-by-one vulnerability has been identified in the Linux kernel's AMD GPU driver, specifically within the 'dm_dmub_outbox1_low_irq' function. This flaw arises from an improper use of the 'ARRAY_SIZE()' macro, which should be adjusted to prevent out-of-bounds access.

Impact

Exploitation of this vulnerability could lead to out-of-bounds memory access, potentially causing memory corruption or allowing for arbitrary code execution.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
4.0
remediation
0.0
relevance
0.0
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.