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 3.18 11/12] net: netxen: fix a missing check and an uninitialized use
Date: Wed, 26 Dec 2018 17:57:39 -0500 [thread overview]
Message-ID: <20181226225741.151608-11-sashal@kernel.org> (raw)
In-Reply-To: <20181226225741.151608-1-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 5c4068353f66..746612a88515 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 23:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-26 22:57 [PATCH AUTOSEL 3.18 01/12] powerpc: Fix COFF zImage booting on old powermacs Sasha Levin
2018-12-26 22:57 ` Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 02/12] checkstack.pl: fix for aarch64 Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 03/12] xfrm: Fix bucket count reported to userspace Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 04/12] Input: omap-keypad - fix idle configuration to not block SoC idle states Sasha Levin
2018-12-26 22:57 ` Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 05/12] USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 06/12] bnx2x: Clear fip MAC when fcoe offload support is disabled Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 07/12] w90p910_ether: remove incorrect __init annotation Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 08/12] x86/mtrr: Don't copy uninitialized gentry fields back to userspace Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 09/12] xen/netfront: tolerate frags with no data Sasha Levin
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 10/12] vxge: ensure data0 is initialized in when fetching firmware version information Sasha Levin
2018-12-26 22:57 ` Sasha Levin [this message]
2018-12-26 22:57 ` [PATCH AUTOSEL 3.18 12/12] serial/sunsu: fix refcount leak Sasha Levin
2018-12-26 22:57 ` Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181226225741.151608-11-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=davem@davemloft.net \
--cc=kjlu@umn.edu \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.