CVS commit: src/sys/arch/amd64/amd64

["Kamil Rytarowski" <kamil%netbsd.org@localhost>]

Module Name:    src
Committed By:   kamil
Date:           Tue Aug  6 01:34:29 UTC 2019

Modified Files:
        src/sys/arch/amd64/amd64: process_machdep.c

Log Message:
Do not dereference user pointer in ptrace_machdep_dorequest()/amd64

Always use copyin(9) for reading user memory.

This fixes SMAP crash on some amd64 machines.

Reported by <msaitoh>


To generate a diff of this commit:
cvs rdiff -u -r1.43 -r1.44 src/sys/arch/amd64/amd64/process_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.