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| author | Michael Ellerman <mpe@ellerman.id.au> | 2018-04-24 14:15:58 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-06-03 20:43:45 +1000 |
| commit | ddf35cf3764b5a182b178105f57515b42e2634f8 (patch) | |
| tree | edebc20a9689231fd62d857d9a9e51f9bf3850c3 /arch/powerpc/kernel | |
| parent | cb3d6759a93c6d0aea1c10deb6d00e111c29c19c (diff) | |
| download | talos-obmc-linux-ddf35cf3764b5a182b178105f57515b42e2634f8.tar.gz talos-obmc-linux-ddf35cf3764b5a182b178105f57515b42e2634f8.zip | |
powerpc: Use barrier_nospec in copy_from_user()
Based on the x86 commit doing the same.
See commit 304ec1b05031 ("x86/uaccess: Use __uaccess_begin_nospec()
and uaccess_try_nospec") and b3bbfb3fb5d2 ("x86: Introduce
__uaccess_begin_nospec() and uaccess_try_nospec") for more detail.
In all cases we are ordering the load from the potentially
user-controlled pointer vs a previous branch based on an access_ok()
check or similar.
Base on a patch from Michal Suchanek.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel')
0 files changed, 0 insertions, 0 deletions
