Re: net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Eric Dumazet
On Fri, 2017-03-03 at 10:25 -0800, Eric Dumazet wrote: > On Fri, Mar 3, 2017 at 10:10 AM, Dmitry Vyukov wrote: > > Hello, > > > > The following program triggers division by 0 in tcp_select_window: > > > >

Re: net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Eric Dumazet
On Fri, 2017-03-03 at 10:25 -0800, Eric Dumazet wrote: > On Fri, Mar 3, 2017 at 10:10 AM, Dmitry Vyukov wrote: > > Hello, > > > > The following program triggers division by 0 in tcp_select_window: > > > >

net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Dmitry Vyukov
Hello, The following program triggers division by 0 in tcp_select_window: https://gist.githubusercontent.com/dvyukov/ef28c0fd2ab57a655508ef7621b12e6c/raw/079011e2a9523a390b0621cbc1e5d9d5e637fd6d/gistfile1.txt divide error: [#1] SMP KASAN Modules linked in: CPU: 3 PID: 0 Comm: swapper/3 Not

net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Dmitry Vyukov
Hello, The following program triggers division by 0 in tcp_select_window: https://gist.githubusercontent.com/dvyukov/ef28c0fd2ab57a655508ef7621b12e6c/raw/079011e2a9523a390b0621cbc1e5d9d5e637fd6d/gistfile1.txt divide error: [#1] SMP KASAN Modules linked in: CPU: 3 PID: 0 Comm: swapper/3 Not

Re: net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Eric Dumazet
On Fri, Mar 3, 2017 at 10:24 AM, Dmitry Vyukov wrote: > On Fri, Mar 3, 2017 at 7:10 PM, Dmitry Vyukov wrote: >> Hello, >> > Wonder if this has been causing other crashes like this one? > > [ cut here ] > kernel BUG at

Re: net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Eric Dumazet
On Fri, Mar 3, 2017 at 10:24 AM, Dmitry Vyukov wrote: > On Fri, Mar 3, 2017 at 7:10 PM, Dmitry Vyukov wrote: >> Hello, >> > Wonder if this has been causing other crashes like this one? > > [ cut here ] > kernel BUG at net/ipv4/tcp_output.c:2748! > Call Trace: > >

Re: net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Eric Dumazet
On Fri, Mar 3, 2017 at 10:10 AM, Dmitry Vyukov wrote: > Hello, > > The following program triggers division by 0 in tcp_select_window: > > https://gist.githubusercontent.com/dvyukov/ef28c0fd2ab57a655508ef7621b12e6c/raw/079011e2a9523a390b0621cbc1e5d9d5e637fd6d/gistfile1.txt

Re: net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Eric Dumazet
On Fri, Mar 3, 2017 at 10:10 AM, Dmitry Vyukov wrote: > Hello, > > The following program triggers division by 0 in tcp_select_window: > > https://gist.githubusercontent.com/dvyukov/ef28c0fd2ab57a655508ef7621b12e6c/raw/079011e2a9523a390b0621cbc1e5d9d5e637fd6d/gistfile1.txt Yeah, tcp_disconnect()

Re: net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Dmitry Vyukov
On Fri, Mar 3, 2017 at 7:10 PM, Dmitry Vyukov wrote: > Hello, > > The following program triggers division by 0 in tcp_select_window: > > https://gist.githubusercontent.com/dvyukov/ef28c0fd2ab57a655508ef7621b12e6c/raw/079011e2a9523a390b0621cbc1e5d9d5e637fd6d/gistfile1.txt > >

Re: net/ipv4: division by 0 in tcp_select_window

2017-03-03 Thread Dmitry Vyukov
On Fri, Mar 3, 2017 at 7:10 PM, Dmitry Vyukov wrote: > Hello, > > The following program triggers division by 0 in tcp_select_window: > > https://gist.githubusercontent.com/dvyukov/ef28c0fd2ab57a655508ef7621b12e6c/raw/079011e2a9523a390b0621cbc1e5d9d5e637fd6d/gistfile1.txt > > divide error: