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authorKees Cook <keescook@chromium.org>2021-06-16 12:53:59 -0700
committerSasha Levin <sashal@kernel.org>2021-06-30 08:49:38 -0400
commitda5b3a5d48ec2c2f63b7526fc989ce8736dd63b3 (patch)
tree45a21f1456e6ad3bcdf19675f9a2d9e680800570
parenta457d94e0e7b01f08f36a2e1640b34cc2f773211 (diff)
r8169: Avoid memcpy() over-reading of ETH_SS_STATS
[ Upstream commit da5ac772cfe2a03058b0accfac03fad60c46c24d ] 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>
-rw-r--r--drivers/net/ethernet/realtek/r8169.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index f3a685d3f649..55b0f11bf2a0 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -2314,7 +2314,7 @@ static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
switch(stringset) {
case ETH_SS_STATS:
- memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
+ memcpy(data, rtl8169_gstrings, sizeof(rtl8169_gstrings));
break;
}
}