From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Xie XiuQi <xiexiuqi@huawei.com>, Hulk Robot <hulkci@huawei.com>,
Andrew Bowers <andrewx.bowers@intel.com>,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
Sasha Levin <sashal@kernel.org>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 34/37] ixgbe: fix signed-integer-overflow warning
Date: Mon, 8 Jun 2020 19:27:46 -0400 [thread overview]
Message-ID: <20200608232750.3370747-34-sashal@kernel.org> (raw)
In-Reply-To: <20200608232750.3370747-1-sashal@kernel.org>
From: Xie XiuQi <xiexiuqi@huawei.com>
[ Upstream commit 3b70683fc4d68f5d915d9dc7e5ba72c732c7315c ]
ubsan report this warning, fix it by adding a unsigned suffix.
UBSAN: signed-integer-overflow in
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c:2246:26
65535 * 65537 cannot be represented in type 'int'
CPU: 21 PID: 7 Comm: kworker/u256:0 Not tainted 5.7.0-rc3-debug+ #39
Hardware name: Huawei TaiShan 2280 V2/BC82AMDC, BIOS 2280-V2 03/27/2020
Workqueue: ixgbe ixgbe_service_task [ixgbe]
Call trace:
dump_backtrace+0x0/0x3f0
show_stack+0x28/0x38
dump_stack+0x154/0x1e4
ubsan_epilogue+0x18/0x60
handle_overflow+0xf8/0x148
__ubsan_handle_mul_overflow+0x34/0x48
ixgbe_fc_enable_generic+0x4d0/0x590 [ixgbe]
ixgbe_service_task+0xc20/0x1f78 [ixgbe]
process_one_work+0x8f0/0xf18
worker_thread+0x430/0x6d0
kthread+0x218/0x238
ret_from_fork+0x10/0x18
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index cd2afe92f1da..e10808b3d118 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -2185,7 +2185,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
}
/* Configure pause time (2 TCs per register) */
- reg = hw->fc.pause_time * 0x00010001;
+ reg = hw->fc.pause_time * 0x00010001U;
for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
--
2.25.1
next prev parent reply other threads:[~2020-06-08 23:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-08 23:27 [PATCH AUTOSEL 4.4 01/37] ath9x: Fix stack-out-of-bounds Write in ath9k_hif_usb_rx_cb Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 02/37] ath9k: Fix use-after-free Write in ath9k_htc_rx_msg Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 04/37] Bluetooth: Add SCO fallback for invalid LMP parameters error Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 10/37] net: vmxnet3: fix possible buffer overflow caused by bad DMA value in vmxnet3_get_rss() Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 12/37] ath9k: Fix use-after-free Read in ath9k_wmi_ctrl_rx Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 13/37] ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 14/37] e1000: Distribute switch variables for initialization Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 17/37] netfilter: nft_nat: return EOPNOTSUPP if type or flags are not supported Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 19/37] net: lpc-enet: fix error return code in lpc_mii_init() Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 20/37] net: allwinner: Fix use correct return type for ndo_start_xmit() Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 22/37] ath9k_htc: Silence undersized packet warnings Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 26/37] mwifiex: Fix memory corruption in dump_station Sasha Levin
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 30/37] macvlan: Skip loopback packets in RX handler Sasha Levin
2020-06-08 23:27 ` Sasha Levin [this message]
2020-06-08 23:27 ` [PATCH AUTOSEL 4.4 37/37] vxlan: Avoid infinite loop when suppressing NS messages with invalid options Sasha Levin
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