Re: Icecast relay crash.

Philipp Schafft <[email protected]> Sat, 05 Nov 2016 17:35:11 +0000
Newsgroups	gmane.comp.audio.icecast.devel
Message-ID	<[email protected]>
Good evening,


On Sat, 2016-11-05 at 19:33 +0530, Sourav Saha wrote:
> Hi,
> 
> 
> I am using icecast 2.3.2 and I'm not in position to upgrade the
> version right away since this version is already in use. Please let me
> know if you need any additional details for this issue. Nevertheless
> if there is any potential fix has gone towards this part of code in
> later versions, I can just use that patch in my current code base. 

Version 2.3.2 is not just old but stone age. It has a range of known
bugs, security vulnerabilities both local and remote.

The problem you see is very likely because of some random buffer overrun
bug. Maybe one of those vulnerabilities.


> Also I'll try to catch up on Freenode but can't be very sure due to
> time difference, so I'm betting on the replies on this thread.
> 
with best regards,


> Thanks/ 
> 
> On Sat, Nov 5, 2016 at 7:08 PM, Philipp Schafft
> <[email protected]> wrote:
> [...]
>         On Sat, 2016-11-05 at 16:38 +0530, Sourav Saha wrote:
>         > I'm facing a problem in icecast relay machines. I'm seeing
>         frequently
>         > that some of the relay machines are crashing and generates
>         core dump
>         > but the reason for the crash is not clear from the trace of
>         the core.
>         > Here is how the gdb trace looks like:
>         >
>         >
>         > (gdb) bt
>         > [...]
>         > #6  0xf7474708 in malloc ()
>         from /lib/i386-linux-gnu/libc.so.6
>         > #7  0x080b66b7 in _accept_connection () at connection.c:598
>         > #8  connection_accept_loop () at connection.c:826
>         > #9  0x080a9c05 in _server_proc () at main.c:384
>         > #10 main (argc=3, argv=0xffbbc554) at main.c:633
>         >
>         >
>         > As you can see at frame #6 malloc() is failing but I don't
>         know the
>         > reason behind this. Does anybody has any idea how to fix
>         this issue?
>         > Note: this is happening only in the relay machines but not
>         in edges.
>         
>         Thank you for your report.
>         What is the _exact_ version you run?
>         
>         
>         You can also reach us on IRC (on Freenode, #icecast) for some
>         live
>         debugging (when the sun is over central Europe).


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