From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.9 85/91] net: dev: Use unsigned integer as an argument to left-shift
Date: Fri, 22 Nov 2019 01:01:23 -0500 [thread overview]
Message-ID: <20191122060129.4239-84-sashal@kernel.org> (raw)
In-Reply-To: <20191122060129.4239-1-sashal@kernel.org>
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit f4d7b3e23d259c44f1f1c39645450680fcd935d6 ]
1 << 31 is Undefined Behaviour according to the C standard.
Use U type modifier to avoid theoretical overflow.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/netdevice.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2ecf0f32444e0..29ed5977ac041 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3565,7 +3565,7 @@ static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits)
if (debug_value == 0) /* no output */
return 0;
/* set low N bits */
- return (1 << debug_value) - 1;
+ return (1U << debug_value) - 1;
}
static inline void __netif_tx_lock(struct netdev_queue *txq, int cpu)
--
2.20.1
prev parent reply other threads:[~2019-11-22 6:03 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 ` [PATCH AUTOSEL 4.9 67/91] net/wan/fsl_ucc_hdlc: Avoid double free in ucc_hdlc_probe() Sasha Levin
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 ` Sasha Levin [this message]
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