On 5/7/20 9:49 AM, Yu-cheng Yu wrote: > In a core dump, copy_xstate_to_kernel() copies only enabled user xfeatures > to a kernel buffer without touching areas for disabled xfeatures. However, > those uninitialized areas may contain random data, which is then written to > the core dump file and can be read by a non-privileged user. > > Fix it by clearing uninitialized areas. Do you have a Fixes: tag for this, or some background on where this issue originated that might be helpful for backports?
