Suraj Jitindar Singh 6fbcdd5909 powerpc: Add barrier_nospec to raw_copy_in_user() ...

Commit ddf35cf376 ("powerpc: Use barrier_nospec in copy_from_user()")
Added barrier_nospec before loading from user-controlled pointers. The
intention was to order the load from the potentially user-controlled
pointer vs a previous branch based on an access_ok() check or similar.

In order to achieve the same result, add a barrier_nospec to the
raw_copy_in_user() function before loading from such a user-controlled
pointer.

Fixes: ddf35cf376 ("powerpc: Use barrier_nospec in copy_from_user()")
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2019-07-03 15:19:36 +10:00

..

asm

powerpc: Add barrier_nospec to raw_copy_in_user()

2019-07-03 15:19:36 +10:00

uapi/asm

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