# GPU security

Published articles for GPU security.

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## High-Intensity Rowhammer Attack On GPUs Leveraging Non-uniform Hammering (U. of Toronto)

DevFeed: [High-Intensity Rowhammer Attack On GPUs Leveraging Non-uniform Hammering (U. of Toronto)](<https://devfeed.tech/articles/high-intensity-rowhammer-attack-on-gpus-leveraging-non-uniform-hammering-u-of-toronto-57975.md>)

Original publisher: [Read original article](<https://semiengineering.com/high-intensity-rowhammer-attack-on-gpus-leveraging-non-uniform-hammering-u-of-toronto/>)

Author: Technical Paper Link

Published: 2026-09-22T16:30:25Z

Content type: news

Language: en

Sources: [Semiconductor Engineering](<https://devfeed.tech/sources/semiconductor-engineering.md>)

Topics: [rowhammer](<https://devfeed.tech/topics/rowhammer.md>), [GPU](<https://devfeed.tech/topics/gpu.md>), [Exploit](<https://devfeed.tech/topics/exploit.md>), [Nvidia](<https://devfeed.tech/topics/nvidia.md>)

Tags: [attacks](<https://devfeed.tech/tags/attacks.md>), [dram](<https://devfeed.tech/tags/dram.md>), [ecc](<https://devfeed.tech/tags/ecc.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [exploit](<https://devfeed.tech/tags/exploit.md>), [gddr6](<https://devfeed.tech/tags/gddr6.md>), [gpu](<https://devfeed.tech/tags/gpu.md>), [gpu-memory](<https://devfeed.tech/tags/gpu-memory.md>), [gpu-security](<https://devfeed.tech/tags/gpu-security.md>), [hardware-security](<https://devfeed.tech/tags/hardware-security.md>), [memory](<https://devfeed.tech/tags/memory.md>), [nvidia](<https://devfeed.tech/tags/nvidia.md>), [paper](<https://devfeed.tech/tags/paper.md>), [rowhammer](<https://devfeed.tech/tags/rowhammer.md>), [security](<https://devfeed.tech/tags/security.md>), [semiconductor](<https://devfeed.tech/tags/semiconductor.md>), [semiconductor-research](<https://devfeed.tech/tags/semiconductor-research.md>), [technical-papers](<https://devfeed.tech/tags/technical-papers.md>), [university](<https://devfeed.tech/tags/university.md>), [university-of-toronto](<https://devfeed.tech/tags/university-of-toronto.md>)

### AI overview

Researchers at the University of Toronto published GPUThor, a technical paper describing a high-intensity Rowhammer attack on ECC-protected NVIDIA GPUs. The attack uses non-uniform hammering patterns based on reverse-engineered GPU memory-access coalescing behavior and accounts for refresh-based mitigations.

### Source excerpt

Researchers at the University of Toronto published a technical paper titled "GPUThor: Amplifying Rowhammer Attacks via Non-Uniform Patterns to Exploit ECC-Protected GPUs." Abstract Excerpt "We present GPUThor, a high-intensity Rowhammer attack on NVIDIA GPUs leveraging non-uniform hammering. GPUThor reverse engineers GPU memory-access coalescing behavior to enable non-uniform hammering patterns on GPUs, that activate aggressor rows... " read more The post High-Intensity Rowhammer Attack On GPUs Leveraging Non-uniform Hammering (U. of Toronto) appeared first on Semiconductor Engineering.