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Suraj Jitindar Singh authored
commit 6fbcdd59 upstream. Commit ddf35cf3 ("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: ddf35cf3 ("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> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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