Red Hat Bugzilla – Bug 437760
NULL dereference when closing a print dialog with no printers chosen
Last modified: 2015-01-07 19:16:18 EST
Description of problem: If no printer is chosen (probably due to the fact that previously selected one was removed, or cups is not running), program crashes due to NULL pointer dereference. Version-Release number of selected component (if applicable): gtk2-2.12.5-1.fc8 How reproducible: Always Steps to Reproduce: 1. run evince, open printing dialog, select an installed printer and close it 2. stop cups 3. open printing dialog and close it Actual results: Crash. Expected results: No crash. Additional info: Core was generated by `evince Prakticke_cviceni_c.3.pdf'. Program terminated with signal 11, Segmentation fault. #0 0x000000328135312f in _gtk_printer_prepare_for_print (printer=0x0, print_job=0xbbfe70, settings=0x2aaab4301ae0, page_setup=0x7e5050) at gtkprinter.c:795 795 GtkPrintBackendClass *backend_class = GTK_PRINT_BACKEND_GET_CLASS (printer->priv->backend); The obvious cause is printer being 0x0. Here's the backtrace, in case it matters: (gdb) bt #0 0x000000328135312f in _gtk_printer_prepare_for_print (printer=0x0, print_job=0xbbfe70, settings=0x2aaab4301ae0, page_setup=0x7e5050) at gtkprinter.c:795 #1 0x000000328135672d in gtk_print_job_constructor (type=10678176, n_construct_properties=4, construct_params=0xbbac00) at gtkprintjob.c:232 #2 0x000000327ec0fe74 in IA__g_object_newv (object_type=10678176, n_parameters=4, parameters=0xbbbdc0) at gobject.c:937 #3 0x000000327ec1094e in IA__g_object_new_valist (object_type=10678176, first_property_name=0x0, var_args=0x7fff99626280) at gobject.c:1027 #4 0x000000327ec10af1 in IA__g_object_new (object_type=10678176, first_property_name=0x3281439fba "title") at gobject.c:795 #5 0x00000032813568fb in IA__gtk_print_job_new (title=0x4666d0 "evince-print", printer=0x0, settings=0x2aaab4301d00, page_setup=0x7e5050) at gtkprintjob.c:297 #6 0x00000000004332c5 in ev_window_print_job_cb (job=<value optimized out>, window=0x704160) at ev-window.c:2238 #7 0x000000327ec0b1a9 in IA__g_closure_invoke (closure=0x9885e0, return_value=0x0, n_param_values=1, param_values=0x7fff996266a0, invocation_hint=0x7fff99626570) at gclosure.c:490 #8 0x000000327ec1a831 in signal_emit_unlocked_R (node=0x991e00, detail=0, instance=0xb039f0, emission_return=0x0, instance_and_params=0x7fff996266a0) at gsignal.c:2440 #9 0x000000327ec1bc73 in IA__g_signal_emit_valist (instance=0xb039f0, signal_id=<value optimized out>, detail=0, var_args=0x7fff99626920) at gsignal.c:2199 #10 0x000000327ec1be43 in IA__g_signal_emit (instance=0x0, signal_id=12320368, detail=3023051488) at gsignal.c:2243 #11 0x000000000041c9fc in notify_finished (job=0xb039f0) at ev-job-queue.c:84 #12 0x000000327e42ef53 in IA__g_main_context_dispatch (context=0x6bbae0) at gmain.c:2061 #13 0x000000327e43224d in g_main_context_iterate (context=0x6bbae0, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2694 #14 0x000000327e43255a in IA__g_main_loop_run (loop=0x6cb9a0) at gmain.c:2898 #15 0x000000328119cbfe in IA__gtk_main () at gtkmain.c:1163 #16 0x0000000000442f90 in main (argc=6967432, argv=<value optimized out>) at main.c:383 #17 0x0000003d3a61e074 in __libc_start_main (main=0x442a40 <main>, argc=2, ubp_av=0x7fff99626cf8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff99626ce8) at libc-start.c:220 #18 0x0000000000419839 in _start () (gdb)
Hi, this is Evince bug. Because Evince handles printing in its own way (using some widgets from gtk2). It is related to bug #429543 (Evince prints even when I hit escape in print dialog). Marek Kasik
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Fedora 8 changed to end-of-life (EOL) status on 2009-01-07. Fedora 8 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.