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Arm warned on Monday of active ongoing attacks targeting a vulnerability in device drivers for its Mali line of GPUs, which run on a host of devices, including Google Pixels and other Android handsets, Chromebooks, and hardware running Linux.

“A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory,” Arm officials wrote in an advisory. “This issue is fixed in Bifrost, Valhall and Arm 5th Gen GPU Architecture Kernel Driver r43p0. There is evidence that this vulnerability may be under limited, targeted exploitation. Users are recommended to upgrade if they are impacted by this issue.”

The advisory continued: “A local non-privileged user can make improper GPU processing operations to access a limited amount outside of buffer bounds or to exploit a software race condition. If the system’s memory is carefully prepared by the user, then this in turn could give them access to already freed memory.”

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