Since do_undefinstr() uses get_user to get the undefined
instruction, it can be called before kprobes processes
recursive check. This can cause an infinit recursive
exception.
Prohibit probing on get_user functions.
Fixes: 24ba613c9d ("ARM kprobes: core code")
Signed-off-by: Masami Hiramatsu <[email protected]>
Cc: [email protected]
Signed-off-by: Russell King <[email protected]>
Masami Hiramatsu
0d73c3f8e7