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Message-Id: <1670490195-19367-1-git-send-email-jun.ann.lai@intel.com>
Date: Thu, 8 Dec 2022 17:03:15 +0800
From: Lai Peter Jun Ann <jun.ann.lai@...el.com>
To: Giuseppe Cavallaro <peppe.cavallaro@...com>,
Alexandre Torgue <alexandre.torgue@...com>,
Jose Abreu <joabreu@...opsys.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc: netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>,
Lai Peter Jun Ann <jun.ann.lai@...el.com>
Subject: [PATCH net-next 1/1] net: stmmac: Add check for taprio basetime configuration
From: Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>
Adds a boundary check to prevent negative basetime input from user
while configuring taprio.
Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>
Signed-off-by: Lai Peter Jun Ann <jun.ann.lai@...el.com>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index 773e415..2cfb18c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -926,6 +926,9 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
int i, ret = 0;
u64 ctr;
+ if (qopt->base_time < 0)
+ return -ERANGE;
+
if (!priv->dma_cap.estsel)
return -EOPNOTSUPP;
--
1.9.1
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