dpa and --

[zonkzonk]

morn,

dpa + -- at the end of the file argument crashes r2:

r2 -qc "dpa" '/bin/ls' -- ;

Core was generated by `r2 -qc dpa /bin/ls --'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f9cfb161354 in cmd_debug_pid (core=0x607980 <r>, input=0xa23b71 "pa") at cmd_debug.c:206

warning: Source file is more recent than executable.
206                     } else r_debug_attach (core->dbg, core->file->desc->fd);
(gdb) bt
#0  0x00007f9cfb161354 in cmd_debug_pid (core=0x607980 <r>, input=0xa23b71 "pa") at cmd_debug.c:206
#1  0x00007f9cfb166948 in cmd_debug (data=0x607980 <r>, input=0xa23b71 "pa") at cmd_debug.c:1670
#2  0x00007f9cfb1b3092 in r_cmd_call (cmd=0x9e8bf0, input=0xa23b70 "dpa") at cmd_api.c:179
#3  0x00007f9cfb192fc2 in r_core_cmd_subst_i (core=0x607980 <r>, cmd=0xa23b70 "dpa") at cmd.c:1370
#4  0x00007f9cfb191723 in r_core_cmd_subst (core=0x607980 <r>, cmd=0xa23b70 "dpa") at cmd.c:923
#5  0x00007f9cfb193b5c in r_core_cmd (core=0x607980 <r>, cstr=0x7fffbcfe8d4f "dpa", log=0) at cmd.c:1576
#6  0x00007f9cfb194111 in r_core_cmd0 (user=0x607980 <r>, cmd=0x7fffbcfe8d4f "dpa") at cmd.c:1699
#7  0x0000000000404d1f in main (argc=5, argv=0x7fffbcfe77d8, envp=0x7fffbcfe7808) at radare2.c:692

r2 version: d4164af, 64bit

Greetings
--zlul

update: also in dpf, does not crash in FreeBSD, happens with -d and without

[radare]

cant reproduce

On 29 Nov 2014, at 10:58, zonkzonk notifications@github.com wrote:

morn,

dpa + -- at the end of the file argument crashes r2:

r2 -qc "dpa" '/bin/ls' -- ;

Core was generated by `r2 -qc dpa /bin/ls --'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f9cfb161354 in cmd_debug_pid (core=0x607980 , input=0xa23b71 "pa") at cmd_debug.c:206

warning: Source file is more recent than executable.
206 } else r_debug_attach (core->dbg, core->file->desc->fd);
(gdb) bt
#0 0x00007f9cfb161354 in cmd_debug_pid (core=0x607980 , input=0xa23b71 "pa") at cmd_debug.c:206
#1 0x00007f9cfb166948 in cmd_debug (data=0x607980 , input=0xa23b71 "pa") at cmd_debug.c:1670
#2 0x00007f9cfb1b3092 in r_cmd_call (cmd=0x9e8bf0, input=0xa23b70 "dpa") at cmd_api.c:179
#3 0x00007f9cfb192fc2 in r_core_cmd_subst_i (core=0x607980 , cmd=0xa23b70 "dpa") at cmd.c:1370
#4 0x00007f9cfb191723 in r_core_cmd_subst (core=0x607980 , cmd=0xa23b70 "dpa") at cmd.c:923
#5 0x00007f9cfb193b5c in r_core_cmd (core=0x607980 , cstr=0x7fffbcfe8d4f "dpa", log=0) at cmd.c:1576
#6 0x00007f9cfb194111 in r_core_cmd0 (user=0x607980 , cmd=0x7fffbcfe8d4f "dpa") at cmd.c:1699
#7 0x0000000000404d1f in main (argc=5, argv=0x7fffbcfe77d8, envp=0x7fffbcfe7808) at radare2.c:692
r2 version: d4164af d4164af
Greetings
--zlul

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[zonkzonk]

I also get this with 32bit on the same r2 version, so questions is: How and with wat do you test ?

[ 483.671429] r2[9713]: segfault at 8 ip b7724b59 sp bfd2df50 error 4 in libr_core.so.0.9.8.git[b7705000+b5000]

[Maijin]

I can reproduce. Valgrind: http://pastie.org/9750716

Linux x64, Ubuntu 14.04.1 LTS d4164af

[crowell]

I can repro too. ubuntu 14.04 amd64.

core->file is null, I'll make a pr

[zonkzonk]

radare : 12/01/14 11:44 crowell: the dpa bug is fixed, but it is still present in dpf
radare : 12/01/14 11:44 pancake: ^^

[radare]

fixed
On 12/01/2014 11:45 AM, zonkzonk wrote:

radare : 12/01/14 11:44 crowell: the dpa bug is fixed, but it is still
present in dpf
radare : 12/01/14 11:44 pancake: ^^

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#1761 (comment).

[zonkzonk]

Tanks for closing the issue. :)