From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Wen Yang <wen.yang99@zte.com.cn>, Peng Hao <peng.hao2@zte.com.cn>,
Zhao Qiang <qiang.zhao@nxp.com>,
"David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.9 67/91] net/wan/fsl_ucc_hdlc: Avoid double free in ucc_hdlc_probe()
Date: Fri, 22 Nov 2019 01:01:05 -0500 [thread overview]
Message-ID: <20191122060129.4239-66-sashal@kernel.org> (raw)
In-Reply-To: <20191122060129.4239-1-sashal@kernel.org>
From: Wen Yang <wen.yang99@zte.com.cn>
[ Upstream commit 40752b3eae29f8ca2378e978a02bd6dbeeb06d16 ]
This patch fixes potential double frees if register_hdlc_device() fails.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Peng Hao <peng.hao2@zte.com.cn>
CC: Zhao Qiang <qiang.zhao@nxp.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: netdev@vger.kernel.org
CC: linuxppc-dev@lists.ozlabs.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wan/fsl_ucc_hdlc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
index 7a62316c570d2..b2c1e872d5ed5 100644
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -1117,7 +1117,6 @@ static int ucc_hdlc_probe(struct platform_device *pdev)
if (register_hdlc_device(dev)) {
ret = -ENOBUFS;
pr_err("ucc_hdlc: unable to register hdlc device\n");
- free_netdev(dev);
goto free_dev;
}
--
2.20.1
next prev parent reply other threads:[~2019-11-22 6:05 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191122060129.4239-1-sashal@kernel.org>
2019-11-22 6:00 ` [PATCH AUTOSEL 4.9 12/91] mwifiex: fix potential NULL dereference and use after free Sasha Levin
2019-11-22 6:00 ` [PATCH AUTOSEL 4.9 13/91] mwifiex: debugfs: correct histogram spacing, formatting Sasha Levin
2019-11-22 6:00 ` [PATCH AUTOSEL 4.9 14/91] rtl818x: fix potential use after free Sasha Levin
2019-11-22 6:00 ` [PATCH AUTOSEL 4.9 21/91] VSOCK: bind to random port for VMADDR_PORT_ANY Sasha Levin
2019-11-22 6:00 ` [PATCH AUTOSEL 4.9 27/91] net/mlx5: Continue driver initialization despite debugfs failure Sasha Levin
2019-11-22 6:00 ` [PATCH AUTOSEL 4.9 45/91] ath6kl: Only use match sets when firmware supports it Sasha Levin
2019-11-22 6:00 ` [PATCH AUTOSEL 4.9 46/91] ath6kl: Fix off by one error in scan completion Sasha Levin
2019-11-22 6:00 ` [PATCH AUTOSEL 4.9 61/91] net/net_namespace: Check the return value of register_pernet_subsys() Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 63/91] net: stmicro: fix a missing check of clk_prepare Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 64/91] net: dsa: bcm_sf2: Propagate error value from mdio_write Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 65/91] atl1e: checking the status of atl1e_write_phy_reg Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 66/91] tipc: fix a missing check of genlmsg_put Sasha Levin
2019-11-22 6:01 ` Sasha Levin [this message]
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 75/91] tipc: fix memory leak in tipc_nl_compat_publ_dump Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 76/91] net/core/neighbour: tell kmemleak about hash tables Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 77/91] net/core/neighbour: fix kmemleak minimal reference count for " Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 78/91] sfc: suppress duplicate nvmem partition types in efx_ef10_mtd_probe Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 79/91] ip_tunnel: Make none-tunnel-dst tunnel port work with lwtunnel Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 80/91] decnet: fix DN_IFREQ_SIZE Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 81/91] tipc: fix skb may be leaky in tipc_link_input Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 82/91] sfc: initialise found bitmap in efx_ef10_mtd_probe Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 83/91] net: fix possible overflow in __sk_mem_raise_allocated() Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 84/91] sctp: don't compare hb_timer expire date before starting it Sasha Levin
2019-11-22 6:01 ` [PATCH AUTOSEL 4.9 85/91] net: dev: Use unsigned integer as an argument to left-shift Sasha Levin
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