r8152: Avoid memcpy() over-reading of ETH_SS_STATS

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>
This commit is contained in:
Kees Cook 2021-06-16 12:53:03 -07:00 коммит произвёл David S. Miller
Родитель 1b29df0e2e
Коммит 99718abdc0
1 изменённых файлов: 1 добавлений и 1 удалений

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@ -8678,7 +8678,7 @@ static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
switch (stringset) {
case ETH_SS_STATS:
memcpy(data, *rtl8152_gstrings, sizeof(rtl8152_gstrings));
memcpy(data, rtl8152_gstrings, sizeof(rtl8152_gstrings));
break;
}
}