[Bug 11338] Rsync Crash - Segmentation fault

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=11338

--- Comment #2 from James Stevenson <james at stev.org> ---

I seem to see the same crash. Here is some additional details with symbols. It
seems to happen during network timeouts.

#0  0x00007fcc2e167b05 in utf8_internal_loop (step=0x560710d73f90,
step_data=0x560710d740c0, irreversible=0x7ffccf327d28, outend=0x560710d7dad0
"", outptrp=<synthetic pointer>, 
    inend=0x7ffccf3287f8 "\n", inptrp=0x7ffccf327e80) at ../iconv/loop.c:325
#1  __gconv_transform_utf8_internal (step=0x560710d73f90,
data=data at entry=0x560710d740c0, inptrp=inptrp at entry=0x7ffccf327e80,
inend=inend at entry=0x7ffccf3287f8 "\n", 
    outbufstart=outbufstart at entry=0x0,
irreversible=irreversible at entry=0x7ffccf327df8, do_flush=do_flush at entry=0,
consume_incomplete=consume_incomplete at entry=0)
    at ../iconv/skeleton.c:613
#2  0x00007fcc2e162722 in __gconv (cd=0x560710d740b0,
inbuf=inbuf at entry=0x7ffccf327e80, inbufend=0x7ffccf3287f8 "\n",
outbuf=outbuf at entry=0x7ffccf327e98, outbufend=<optimized out>, 
    irreversible=irreversible at entry=0x7ffccf327df8) at gconv.c:79
#3  0x00007fcc2e161fa1 in iconv (cd=cd at entry=0x560710d740b0,
inbuf=inbuf at entry=0x7ffccf327e80, inbytesleft=inbytesleft at entry=0x7ffccf327e88,
outbuf=outbuf at entry=0x7ffccf327e98, 
    outbytesleft=outbytesleft at entry=0x7ffccf327e90) at iconv.c:52
#4  0x000056070fa1954f in iconvbufs (ic=ic at entry=0x560710d740b0,
in=in at entry=0x7ffccf327f20, out=out at entry=0x7ffccf327f00, flags=0) at
rsync.c:208
#5  0x000056070fa30191 in rwrite (code=<optimized out>, code at entry=FERROR,
buf=<optimized out>, 
    buf at entry=0x7ffccf3287b0 "rsync: connection unexpectedly closed (0 bytes
received so far) [sender]\n", len=<optimized out>, is_utf8=<optimized out>,
is_utf8 at entry=0) at log.c:374
#6  0x000056070fa307e3 in rprintf (code=code at entry=FERROR,
format=format at entry=0x56070fa677b0 "rsync: connection unexpectedly closed (%s
bytes received so far) [%s]\n") at log.c:433
#7  0x000056070fa39064 in whine_about_eof (allow_kluge=allow_kluge at entry=0) at
io.c:231
#8  0x000056070fa3c992 in read_buf (f=f at entry=5, buf=buf at entry=0x7ffccf329cd0
"\037", len=len at entry=4) at io.c:1834
#9  0x000056070fa3caa1 in read_int (f=f at entry=5) at io.c:1729
#10 0x000056070fa3e48c in setup_protocol (f_out=4, f_in=5) at compat.c:158
#11 0x000056070fa2d4b0 in client_run (f_in=5, f_out=4, pid=9022, argc=1,
argv=0x560710d74760) at main.c:1110
#12 0x000056070fa109a1 in start_client (argv=0x560710d74760, argc=1) at
main.c:1420
#13 main (argc=2, argv=0x560710d74760) at main.c:1648
(gdb) f 4
#4  0x000056070fa1954f in iconvbufs (ic=ic at entry=0x560710d740b0,
in=in at entry=0x7ffccf327f20, out=out at entry=0x7ffccf327f00, flags=0) at
rsync.c:208
208    in rsync.c
(gdb) p flags
$15 = 0
(gdb) p xbuf
Attempt to use a type name as an expression
(gdb) p in
$16 = (xbuf *) 0x7ffccf327f20
(gdb) p *in
$17 = {buf = 0x7ffccf3287b0 "rsync: connection unexpectedly closed (0 bytes
received so far) [sender]\n", pos = 18889, len = 18446744073709532799, size =
18446744073709551615}
(gdb) p *out
$18 = {buf = 0x7ffccf327f40 "\"\023", pos = 0, len = 0, size = 1024}

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