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ARM: ensure the signal page contains defined contents
authorRussell King <rmk+kernel@armlinux.org.uk>
Fri, 29 Jan 2021 10:19:07 +0000 (10:19 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Feb 2021 09:35:16 +0000 (10:35 +0100)
commitf49bff85b6dbb60a410c7f7dc53b52ee1dc22470
treee7e77ebde41473e956cf90408463c9184f04b2c8tree | snapshot
parent06350c7f7923b7613564b77b44edb135e918c89dcommit | diff
ARM: ensure the signal page contains defined contents

[ Upstream commit 9c698bff66ab4914bb3d71da7dc6112519bde23e ]

Ensure that the signal page contains our poison instruction to increase
the protection against ROP attacks and also contains well defined
contents.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm/kernel/signal.c diff | blob | history
wrapfs-5.3.y