From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 8/9] r8169: Avoid memcpy() over-reading of ETH_SS_STATS
Date: Mon, 21 Jun 2021 13:56:06 -0400 [thread overview]
Message-ID: <20210621175608.736581-8-sashal@kernel.org> (raw)
In-Reply-To: <20210621175608.736581-1-sashal@kernel.org>
From: Kees Cook <keescook@chromium.org>
[ 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>
---
drivers/net/ethernet/realtek/r8169.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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;
}
}
--
2.30.2
next prev parent reply other threads:[~2021-06-21 18:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 17:55 [PATCH AUTOSEL 4.4 1/9] cfg80211: call cfg80211_leave_ocb when switching away from OCB Sasha Levin
2021-06-21 17:56 ` [PATCH AUTOSEL 4.4 2/9] mac80211: drop multicast fragments Sasha Levin
2021-06-21 17:56 ` [PATCH AUTOSEL 4.4 3/9] ping: Check return value of function 'ping_queue_rcv_skb' Sasha Levin
2021-06-21 17:56 ` [PATCH AUTOSEL 4.4 4/9] inet: annotate date races around sk->sk_txhash Sasha Levin
2021-06-21 17:56 ` [PATCH AUTOSEL 4.4 5/9] net: caif: fix memory leak in ldisc_open Sasha Levin
2021-06-21 17:56 ` [PATCH AUTOSEL 4.4 6/9] r8152: Avoid memcpy() over-reading of ETH_SS_STATS Sasha Levin
2021-06-21 17:56 ` [PATCH AUTOSEL 4.4 7/9] sh_eth: " Sasha Levin
2021-06-21 17:56 ` Sasha Levin [this message]
2021-06-21 17:56 ` [PATCH AUTOSEL 4.4 9/9] net: ll_temac: Avoid ndo_start_xmit returning NETDEV_TX_BUSY Sasha Levin
2021-06-21 17:56 ` Sasha Levin
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