From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Yang Yingliang <yangyingliang@huawei.com>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
linux-mips@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.13 097/189] net: sgi: ioc3-eth: check return value after calling platform_get_resource()
Date: Tue, 6 Jul 2021 07:12:37 -0400 [thread overview]
Message-ID: <20210706111409.2058071-97-sashal@kernel.org> (raw)
In-Reply-To: <20210706111409.2058071-1-sashal@kernel.org>
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit db8f7be1e1d64fbf113a456ef94534fbf5e9a9af ]
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/sgi/ioc3-eth.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index 6eef0f45b133..2b29fd4cbdf4 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -835,6 +835,10 @@ static int ioc3eth_probe(struct platform_device *pdev)
int err;
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!regs) {
+ dev_err(&pdev->dev, "Invalid resource\n");
+ return -EINVAL;
+ }
/* get mac addr from one wire prom */
if (ioc3eth_get_mac_addr(regs, mac_addr))
return -EPROBE_DEFER; /* not available yet */
--
2.30.2
next prev parent reply other threads:[~2021-07-06 11:16 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210706111409.2058071-1-sashal@kernel.org>
2021-07-06 11:11 ` [PATCH AUTOSEL 5.13 019/189] MIPS: Loongson64: Fix build error 'secondary_kexec_args' undeclared under !SMP Sasha Levin
2021-07-06 11:11 ` [PATCH AUTOSEL 5.13 020/189] hugetlb: clear huge pte during flush function on mips platform Sasha Levin
2021-07-06 11:12 ` [PATCH AUTOSEL 5.13 064/189] MIPS: cpu-probe: Fix FPU detection on Ingenic JZ4760(B) Sasha Levin
2021-07-06 11:12 ` [PATCH AUTOSEL 5.13 065/189] MIPS: ingenic: Select CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER Sasha Levin
2021-07-06 11:12 ` Sasha Levin [this message]
2021-07-06 11:13 ` [PATCH AUTOSEL 5.13 139/189] MIPS: add PMD table accounting into MIPS'pmd_alloc_one Sasha Levin
2021-07-06 11:13 ` [PATCH AUTOSEL 5.13 167/189] net: retrieve netns cookie via getsocketopt Sasha Levin
2021-07-06 11:14 ` [PATCH AUTOSEL 5.13 187/189] MIPS: loongsoon64: Reserve memory below starting pfn to prevent Oops Sasha Levin
2021-07-06 11:14 ` [PATCH AUTOSEL 5.13 188/189] MIPS: set mips32r5 for virt extensions Sasha Levin
2021-07-06 11:14 ` [PATCH AUTOSEL 5.13 189/189] MIPS: CI20: Reduce clocksource to 750 kHz Sasha Levin
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