Researchers uncovered a critical vulnerability in graphic processing units of popular devices that could allow attackers to access data from large language models.

The flaw, dubbed LeftoverLocals, affects the GPU frameworks of Apple, AMD and Qualcomm devices. Researchers at security firm Trail of Bits, who uncovered the flaw, said it stems from how the affected devices don’t isolate kernel memory, allowing an attacker to simply write GPU kernel code to prompt the targeted devices to dump data from memory.