r8152: Avoid memcpy() over-reading of ETH_SS_STATS
authorKees Cook <keescook@chromium.org>
Wed, 16 Jun 2021 19:53:03 +0000 (12:53 -0700)
committerSasha Levin <sashal@kernel.org>
Wed, 30 Jun 2021 12:47:22 +0000 (08:47 -0400)
commita10856ea6066872a01a59007fa108026ef58c24d
treed23bfc91b79f52ed8286f6c959d610a2a234804f
parent196b22ef6cd1cdd87a85811d27ec8936fd71f346
r8152: Avoid memcpy() over-reading of ETH_SS_STATS

[ Upstream commit 99718abdc00e86e4f286dd836408e2834886c16e ]

In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memcpy(), memmove(), and memset(), avoid
intentionally reading across neighboring array fields.

The memcpy() is copying the entire structure, not just the first array.
Adjust the source argument so the compiler can do appropriate bounds
checking.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/usb/r8152.c