Hello Jeremie,

On Mon, Dec 12, 2016 at 02:10:33AM +0100, Jeremie Courreges-Anglas wrote:
> It is not clear to me whether this update doesn't have any drawback.
> Also, the issue at hand may be fixed only because the patches have been
> removed.  Markus is the maintainer and should decide here (I added him
> to the Cc list).
> 
> Frank, does the following diff help?

Thanks for looking into this as well. Unfortunately your patch doesn't
help. Below the new backtrace.

Frank

 
igmpproxy(31308) in free(): error: use after free 0x1ed1b2687600

Program received signal SIGABRT, Aborted.
0x00001ed13291387a in thrkill () at <stdin>:2
2       <stdin>: No such file or directory.
        in <stdin>
Current language:  auto; currently asm
(gdb) bt
#0  0x00001ed13291387a in thrkill () at <stdin>:2
#1  0x00001ed13290ef39 in *_libc_abort ()
    at /usr/src/lib/libc/stdlib/abort.c:52
#2  0x00001ed1328f1279 in wrterror (msg=0x1ed132a1a378 "use after free", 
    p=0x1ed1b2687600) at /usr/src/lib/libc/stdlib/malloc.c:283
#3  0x00001ed1328f284c in ofree (p=0x1ed1b2687600)
    at /usr/src/lib/libc/stdlib/malloc.c:1235
#4  0x00001ed1328f28ee in free (ptr=0x1ed121093600)
    at /usr/src/lib/libc/stdlib/malloc.c:1340
#5  0x00001ecf19f05888 in age_callout_queue (elapsed_time=2) at
callout.c:92
#6  0x00001ecf19f01e06 in igmpProxyRun () at igmpproxy.c:378
#7  0x00001ecf19f02321 in main (ArgCn=2, ArgVc=0x7f7ffffbd448)
    at igmpproxy.c:181

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