From: ZhangXiaoxu <[email protected]> Date: Tue, 16 Apr 2019 09:47:24 +0800
> There is a UBSAN report as below:
> UBSAN: Undefined behaviour in net/ipv4/tcp_input.c:2877:56
> signed integer overflow:
...
> It can be reproduced by:
> echo 2147483647 > /proc/sys/net/ipv4/tcp_min_rtt_wlen
>
> Fixes: f672258391b42 ("tcp: track min RTT using windowed min-filter")
>
> Signed-off-by: ZhangXiaoxu <[email protected]>
Applied and queued up for -stable.
