tree 1157529f1984e2f576326efb9fcc5dda67a9da86
parent eb0146daefdde65665b7f076fbff7b49dade95b9
author Masami Hiramatsu <mhiramat@kernel.org> 1526184269 +0100
committer Russell King <rmk+kernel@armlinux.org.uk> 1526726156 +0100

ARM: 8772/1: kprobes: Prohibit kprobes on get_user functions

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: 24ba613c9d6c ("ARM kprobes: core code")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>