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Latest Debian Stretch Kernel Update Fixes Data Corruption Bug on PowerPC Systems

On February 22, 2018, the Debian Project released a kernel update for Debian GNU/Linux 9 “Stretch” users to fix the Spectre Variant 2 (branch target injection) vulnerability for the Intel x86_64 architecture and the Meltdown security vulnerability for PowerPC and PPC64el (PowerPC 64-bit Little Endian) architectures. The kernel update also addressed an information leak in the Linux kernel, a bug in v4l2 IOCTL handling code’s 32-bit compatibility layer, and Spectre Variant 1 (bounds-check bypass). However, it appears that it caused a regression on PowerPC architectures that could lead to random segfaults and data corruption.