pidgin crashed with SIGSEGV in pidgin_conv_add_gtkconv()

[Chinmay Kamat]

I am not sure if this a pidgin issue or a pidgin-sipe issue, but it started after I enabled the pidgin-sipe plugin. Occurs on the package in the official repo as well as in the current PPA. Stack trace from /var/crash follows:

InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
NonfreeKernelModules: iomod nvidia
Package: pidgin 1:2.10.4-1ubuntu0+pidgin3.12.04 [origin: LP-PPA-pidgin-developers]
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Registers:
 rax 0x2 2
 rbx 0x107ff 67583
 rcx 0xc1 193
 rdx 0x0 0
 rsi 0x7f6a57b3e9f0 140094714669552
 rdi 0x7f6a58d07cb0 140094733319344
 rbp 0x7f6a59006600 0x7f6a59006600
 rsp 0x7fff41ba4d00 0x7fff41ba4d00
 r8 0x0 0
 r9 0x8 8
 r10 0xfffffffffffffcd8 -808
 r11 0x7f6a543c14d0 140094656484560
 r12 0x7f6a59006608 140094736459272
 r13 0x7f6a59cb9330 140094749774640
 r14 0x7f6a59cb94e0 140094749775072
 r15 0x7f6a59daa038 140094750761016
 rip 0x7f6a57ad37df 0x7f6a57ad37df
 eflags 0x10297 [ CF PF AF SF IF RF ]
 cs 0x33 51
 ss 0x2b 43
 ds 0x0 0
 es 0x0 0
 fs 0x0 0
 gs 0x0 0
SegvAnalysis:
 Segfault happened at: 0x7f6a57ad37df: mov 0x78(%rbx),%rdi
 PC (0x7f6a57ad37df) ok
 source "0x78(%rbx)" (0x00010877) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading unknown VMA
SourcePackage: pidgin
Stacktrace:
 #0 0x00007f6a57ad37df in ?? ()
 No symbol table info available.
 #1 0x00007f6a57ada922 in pidgin_conv_window_add_gtkconv ()
 No symbol table info available.
 #2 0x00007f6a57adfd45 in ?? ()
 No symbol table info available.
 #3 0x00007f6a54956408 in purple_conversation_new () from /usr/lib/libpurple.so.0
 No symbol table info available.
 #4 0x00007f6a57ae0aae in ?? ()
 No symbol table info available.
 #5 0x00007f6a5498902f in purple_signal_emit_vargs () from /usr/lib/libpurple.so.0
 No symbol table info available.
 #6 0x00007f6a54989181 in purple_signal_emit () from /usr/lib/libpurple.so.0
 No symbol table info available.
 #7 0x00007f6a54987971 in serv_got_im () from /usr/lib/libpurple.so.0
 No symbol table info available.
 #8 0x00007f6a39fb6d4f in process_incoming_message () from /usr/lib/purple-2/libsipe.so
 No symbol table info available.
 #9 0x00007f6a39facb91 in ?? () from /usr/lib/purple-2/libsipe.so
 No symbol table info available.
 #10 0x00007f6a57ae81ae in ?? ()
 No symbol table info available.
 #11 0x00007f6a54c70c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 No symbol table info available.
 #12 0x00007f6a54c71060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 No symbol table info available.
 #13 0x00007f6a54c7145a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 No symbol table info available.
 #14 0x00007f6a55e9c2f7 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
 No symbol table info available.
 #15 0x00007f6a57aad17e in main ()
 No symbol table info available.
StacktraceAddressSignature: /usr/bin/pidgin:11:x86_64:/usr/bin/pidgin+617df:/usr/bin/pidgin+68922:/usr/bin/pidgin+6dd45:/usr/lib/libpurple.so.0.10.4+5f408:/usr/bin/pidgin+6eaae:/usr/lib/libpurple.so.0.10.4+9202f:/usr/lib/libpurple.so.0.10.4+92181:/usr/lib/libpurple.so.0.10.4+90971:/usr/lib/purple-2/libsipe.so+20d4f:/usr/lib/purple-2/libsipe.so+16b91:/usr/bin/pidgin+761ae:/lib/x86_64-linux-gnu/libglib-2.0.so.0.3200.1+47c9a:/lib/x86_64-linux-gnu/libglib-2.0.so.0.3200.1+48060:/lib/x86_64-linux-gnu/libglib-2.0.so.0.3200.1+4845a:/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0.2400.10+1342f7

So far I have been unable to get a reason / reprod steps for this. It occurs randomly and quite frequently.