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sh_eth: Avoid memcpy() over-reading of ETH_SS_STATS
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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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kees authored and davem330 committed Jun 16, 2021
1 parent 99718ab commit 224004f
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion drivers/net/ethernet/renesas/sh_eth.c
Original file line number Diff line number Diff line change
Expand Up @@ -2287,7 +2287,7 @@ static void sh_eth_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
{
switch (stringset) {
case ETH_SS_STATS:
memcpy(data, *sh_eth_gstrings_stats,
memcpy(data, sh_eth_gstrings_stats,
sizeof(sh_eth_gstrings_stats));
break;
}
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