From: Eric Dumazet
Date: Mon, 14 May 2018 21:14:26 -0700
> syzkaller found a reliable way to crash the host, hitting a BUG()
> in __tcp_retransmit_skb()
>
> Malicous MSG_FASTOPEN is the root cause. We need to purge write queue
> in tcp_connect_init() at the point we init snd_una/write_seq.
>
>
On Tue, May 15, 2018 at 12:14 AM Eric Dumazet wrote:
> syzkaller found a reliable way to crash the host, hitting a BUG()
> in __tcp_retransmit_skb()
> Malicous MSG_FASTOPEN is the root cause. We need to purge write queue
> in tcp_connect_init() at the point we init snd_una/write_seq.
> This pat
syzkaller found a reliable way to crash the host, hitting a BUG()
in __tcp_retransmit_skb()
Malicous MSG_FASTOPEN is the root cause. We need to purge write queue
in tcp_connect_init() at the point we init snd_una/write_seq.
This patch also replaces the BUG() by a less intrusive WARN_ON_ONCE()
ke
