Julien Thierry b7a95704e9 ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization ...

Commit afaf6838f4 upstream.

Introduce C and asm helpers to sanitize user address, taking the
address range they target into account.

Use asm helper for existing sanitization in __copy_from_user().

Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David A. Long <dave.long@linaro.org>
Reviewed-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2019-02-20 10:25:37 +01:00

2.1 KiB

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