GPUHammer demonstrates that Rowhammer bit flips are practical on GPU memories, specifically on GDDR6 in NVIDIA A6000 GPUs. By exploiting these vulnerabilities, attackers can significantly degrade the accuracy of machine learning models, highlighting a critical security concern for shared GPU environments.
Qualcomm has issued security patches for three zero-day vulnerabilities in the Adreno GPU driver, which are being actively exploited in targeted attacks. The vulnerabilities include two critical flaws related to memory corruption and a high-severity use-after-free issue, with updates provided to OEMs to address these risks. Additionally, Qualcomm has addressed other security flaws in its systems that could allow unauthorized access to sensitive user information.