diff options
| author | Suraj Jitindar Singh <[email protected]> | 2019-03-06 12:10:38 +1100 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2019-07-03 15:19:36 +1000 |
| commit | 6fbcdd59094ade30db63f32316e9502425d7b256 (patch) | |
| tree | b8bb4bd4a9c755717f4513f876547040eabaa78f /lib/test_overflow.c | |
| parent | 3fefd1cd95df04da67c83c1cb93b663f04b3324f (diff) | |
powerpc: Add barrier_nospec to raw_copy_in_user()
Commit ddf35cf3764b ("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: ddf35cf3764b ("powerpc: Use barrier_nospec in copy_from_user()")
Signed-off-by: Suraj Jitindar Singh <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'lib/test_overflow.c')
0 files changed, 0 insertions, 0 deletions