Commit 2a272f98 authored by Gavin McCullagh's avatar Gavin McCullagh Committed by David S. Miller
Browse files

[TCP] H-TCP: fix integer overflow

When using H-TCP with a single flow on a 500Mbit connection (or less
actually), alpha can exceed 65000, so alpha needs to be a u32.
Signed-off-by: default avatarGavin McCullagh <>
Signed-off-by: default avatarDoug Leith <>
Signed-off-by: default avatarDavid S. Miller <>
parent 22119240
......@@ -23,7 +23,7 @@ module_param(use_bandwidth_switch, int, 0644);
MODULE_PARM_DESC(use_bandwidth_switch, "turn on/off bandwidth switcher");
struct htcp {
u16 alpha; /* Fixed point arith, << 7 */
u32 alpha; /* Fixed point arith, << 7 */
u8 beta; /* Fixed point arith, << 7 */
u8 modeswitch; /* Delay modeswitch until we had at least one congestion event */
u32 last_cong; /* Time since last congestion event end */
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment