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(parent: 41a69b5) | patch
x86/uaccess: Enable hardened usercopy
authorKees Cook <keescook@chromium.org>
Thu, 23 Jun 2016 22:04:01 +0000 (15:04 -0700)
committerAlex Shi <alex.shi@linaro.org>
Sat, 27 Aug 2016 03:23:38 +0000 (11:23 +0800)
commit4f80bcbe91072b5b83ff3fe0b7cb1e29cfa638be
treef928e47d2917c5ff50c0a90420d82de5b81c6278tree | snapshot
parent41a69b502d8ff510880646d246d17b8617b8f49acommit | diff
x86/uaccess: Enable hardened usercopy

Enables CONFIG_HARDENED_USERCOPY checks on x86. This is done both in
copy_*_user() and __copy_*_user() because copy_*_user() actually calls
down to _copy_*_user() and not __copy_*_user().

Based on code from PaX and grsecurity.

Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
(cherry picked from commit 5b710f34e194c6b7710f69fdb5d798fdf35b98c1)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
arch/x86/Kconfig diff | blob | history
arch/x86/include/asm/uaccess.h diff | blob | history
arch/x86/include/asm/uaccess_32.h diff | blob | history
arch/x86/include/asm/uaccess_64.h diff | blob | history
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