Bug 703275 – Segfault when searching (apparently) on multilines

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Bug 703275 - Segfault when searching (apparently) on multilines


Summary:	Segfault when searching (apparently) on multilines


Status:	RESOLVED FIXED

Product:	evince
Classification:	Core
Component:	general
Version:	3.9.x
Hardware:	Other Linux

Importance:	Normal critical
Target Milestone:	---
Assigned To:	Evince Maintainers
QA Contact:	Evince Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2013-06-28 17:09 UTC by Germán Poo-Caamaño
Modified:	2013-06-30 08:00 UTC

See Also:
GNOME target:	---
GNOME version:	---

Attachments
PDF test case (428.71 KB, application/x-force-download) 2013-06-28 17:09 UTC, Germán Poo-Caamaño	Details

Description Germán Poo-Caamaño 2013-06-28 17:09:54 UTC

Created attachment 248003 [details]
PDF test case

I am using evince and poppler master from today (4e2bf3ff and 263995, respectively).

1. I opened the PDF attached.
3. Ctrl+F to search
4. Tried to type: "at the"
I crashed just after the "t".

I was trying to search for a text that I knew was split in 2 lines (in the abstract).

I can reproduce the bug several times.  Once I had to click on the document, before searching (maybe I started to search quicker as soon as the document was being loaded).

Here is the backtrace (you might want to check the Thread #1):

+ Trace 232163

Thread 1 (Thread 0xb5994ac0 (LWP 3207))

#0 sanitized_substring
at ev-find-sidebar.c line 232
#1 get_surrounding_text_markup
#2 process_matches_idle
at ev-find-sidebar.c line 427
#3 g_idle_dispatch
at gmain.c line 5205
#4 g_main_dispatch
at gmain.c line 3054
#5 g_main_context_dispatch
at gmain.c line 3630
#6 g_main_context_iterate
at gmain.c line 3701
#7 g_main_context_iterate
at gmain.c line 3638
#8 g_main_context_iteration
at gmain.c line 3762
#9 g_application_run
at gapplication.c line 1623
#10 main
at main.c line 332

Comment 1 Germán Poo-Caamaño 2013-06-28 21:39:01 UTC

FWIW, I was able to reproduce the same issue with another PDF.

I found out that it depends on the word I search first.  If I search another word first and then the one that made evince crash, it does not crash.

Comment 2 Germán Poo-Caamaño 2013-06-28 22:48:02 UTC

Another PDF to give a try is:

http://academic.patrick.wagstrom.net/publications/Jergensen_2011_TheOnionPatchMigrationInOpenSourceEcosystems.pdf?attredirects=0

Try:
1. Ctrl+F
2. Type: onion
3. Segfault

Comment 3 Carlos Garcia Campos 2013-06-30 08:00:31 UTC

Fixed in git master, we were entering an infinite loop. Also fixed the search results in multicolumn documents that was broken too. Thanks for reporting.