From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Kangjie Lu <kjlu@umn.edu>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 20/21] net: netxen: fix a missing check and an uninitialized use
Date: Wed, 26 Dec 2018 17:54:58 -0500 [thread overview]
Message-ID: <20181226225501.151365-20-sashal@kernel.org> (raw)
In-Reply-To: <20181226225501.151365-1-sashal@kernel.org>
From: Kangjie Lu <kjlu@umn.edu>
[ Upstream commit d134e486e831defd26130770181f01dfc6195f7d ]
When netxen_rom_fast_read() fails, "bios" is left uninitialized and may
contain random value, thus should not be used.
The fix ensures that if netxen_rom_fast_read() fails, we return "-EIO".
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
index 7b43a3b4abdc..5cf551914767 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
@@ -1125,7 +1125,8 @@ netxen_validate_firmware(struct netxen_adapter *adapter)
return -EINVAL;
}
val = nx_get_bios_version(adapter);
- netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
+ if (netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios))
+ return -EIO;
if ((__force u32)val != bios) {
dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
fw_name[fw_type]);
--
2.19.1
next prev parent reply other threads:[~2018-12-26 22:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-26 22:54 [PATCH AUTOSEL 4.4 01/21] powerpc: Fix COFF zImage booting on old powermacs Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 02/21] ARM: imx: update the cpu power up timing setting on i.mx6sx Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 03/21] Input: restore EV_ABS ABS_RESERVED Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 04/21] checkstack.pl: fix for aarch64 Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 05/21] xfrm: Fix bucket count reported to userspace Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 06/21] scsi: bnx2fc: Fix NULL dereference in error handling Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 07/21] Input: omap-keypad - fix idle configuration to not block SoC idle states Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 08/21] USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 09/21] bnx2x: Clear fip MAC when fcoe offload support is disabled Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 10/21] w90p910_ether: remove incorrect __init annotation Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 11/21] net: hns: Incorrect offset address used for some registers Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 12/21] net: hns: Fixed bug that netdev was opened twice Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 13/21] net: hns: Avoid net reset caused by pause frames storm Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 14/21] net: hns: Add mac pcs config when enable|disable mac Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 15/21] SUNRPC: Fix a race with XPRT_CONNECTING Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 16/21] x86/mtrr: Don't copy uninitialized gentry fields back to userspace Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 17/21] lan78xx: Resolve issue with changing MAC address Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 18/21] xen/netfront: tolerate frags with no data Sasha Levin
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 19/21] vxge: ensure data0 is initialized in when fetching firmware version information Sasha Levin
2018-12-26 22:54 ` Sasha Levin [this message]
2018-12-26 22:54 ` [PATCH AUTOSEL 4.4 21/21] serial/sunsu: fix refcount leak Sasha Levin
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