Re: [PATCH net] tcp: fix various issues for sockets morphing to listen state

2017-03-07 Thread David Miller
From: Eric Dumazet Date: Fri, 03 Mar 2017 14:08:21 -0800 > From: Eric Dumazet > > Dmitry Vyukov reported a divide by 0 triggered by syzkaller, exploiting > tcp_disconnect() path that was never really considered and/or used > before syzkaller ;) > > I was not able to reproduce the bug, but it s

Re: [PATCH net] tcp: fix various issues for sockets morphing to listen state

2017-03-05 Thread Eric Dumazet
On Sun, Mar 5, 2017 at 4:00 AM, Dmitry Vyukov wrote: > On Fri, Mar 3, 2017 at 11:08 PM, Eric Dumazet wrote: >> From: Eric Dumazet >> >> Dmitry Vyukov reported a divide by 0 triggered by syzkaller, exploiting >> tcp_disconnect() path that was never really considered and/or used >> before syzkalle

Re: [PATCH net] tcp: fix various issues for sockets morphing to listen state

2017-03-05 Thread Dmitry Vyukov
On Fri, Mar 3, 2017 at 11:08 PM, Eric Dumazet wrote: > From: Eric Dumazet > > Dmitry Vyukov reported a divide by 0 triggered by syzkaller, exploiting > tcp_disconnect() path that was never really considered and/or used > before syzkaller ;) > > I was not able to reproduce the bug, but it seems is

[PATCH net] tcp: fix various issues for sockets morphing to listen state

2017-03-03 Thread Eric Dumazet
From: Eric Dumazet Dmitry Vyukov reported a divide by 0 triggered by syzkaller, exploiting tcp_disconnect() path that was never really considered and/or used before syzkaller ;) I was not able to reproduce the bug, but it seems issues here are the three possible actions that assumed they would n