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i2c: dev: copy userspace array safely
[ Upstream commit cc9c542 ] i2c-dev.c utilizes memdup_user() to copy a userspace array. This is done without an overflow check. Use the new wrapper memdup_array_user() to copy the array more safely. Suggested-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Philipp Stanner <pstanner@redhat.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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