Re: [PATCH net] tcp: be more careful in tcp_fragment()

2019-07-21 Thread David Miller
From: Eric Dumazet Date: Fri, 19 Jul 2019 11:52:33 -0700 > Some applications set tiny SO_SNDBUF values and expect > TCP to just work. Recent patches to address CVE-2019-11478 > broke them in case of losses, since retransmits might > be prevented. > > We should allow these flows to make progress.

[PATCH net] tcp: be more careful in tcp_fragment()

2019-07-19 Thread Eric Dumazet
Some applications set tiny SO_SNDBUF values and expect TCP to just work. Recent patches to address CVE-2019-11478 broke them in case of losses, since retransmits might be prevented. We should allow these flows to make progress. This patch allows the first and last skb in retransmit queue to be sp