ARM: 8771/1: kprobes: Prohibit kprobes on do_undefinstr

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commit eb0146daef upstream.

Prohibit kprobes on do_undefinstr because kprobes on
arm is implemented by undefined instruction. This means
if we probe do_undefinstr(), it can cause infinit
recursive exception.

Fixes: 24ba613c9d ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Masami Hiramatsu 2018-05-13 05:04:16 +01:00 • committed by Greg Kroah-Hartman

parent e5cefe3570

commit 5f3ca3928e

1 changed files with 4 additions and 1 deletions

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arch/arm/kernel/traps.c

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