[Touch-packages] [Bug 1855596] Re: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF
*** This bug is a duplicate of bug 1849773 *** https://bugs.launchpad.net/bugs/1849773 This is a duplicate of bug 1849773 ** This bug has been marked a duplicate of bug 1849773 /usr/bin/evince:11:strstr:TextSelectionPainter::hasGlyphLessFont:TextSelectionPainter::endPage:TextPage::drawSelection:poppler_page_render_selection -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to poppler in Ubuntu. https://bugs.launchpad.net/bugs/1855596 Title: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF Status in poppler package in Ubuntu: Confirmed Bug description: When viewing a certain PDF (which I unfortunately can't share) using evince, a see a crash in libpoppler90. It's a NULL pointer dereference in TextSelectionPainter::hasGlyphLessFont(), because in this certain PDF, for whatever reason, sel->word->getFontName(0) may return NULL. Attached you'll find a proposed patch increasing the robustness in this case. Cheers, Enrik To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/poppler/+bug/1855596/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1855596] Re: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF
Bug was introduced by LP #1830473 (Does not handle glyphless fonts, as used by tesseract) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to poppler in Ubuntu. https://bugs.launchpad.net/bugs/1855596 Title: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF Status in poppler package in Ubuntu: Confirmed Bug description: When viewing a certain PDF (which I unfortunately can't share) using evince, a see a crash in libpoppler90. It's a NULL pointer dereference in TextSelectionPainter::hasGlyphLessFont(), because in this certain PDF, for whatever reason, sel->word->getFontName(0) may return NULL. Attached you'll find a proposed patch increasing the robustness in this case. Cheers, Enrik To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/poppler/+bug/1855596/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1855596] Re: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF
Please find attached a sample PDF demonstrating the problem.
It was produced by pdflatex on this file:
%%
% -*- compile-command: "pdflatex t1-test && evince t1-test.pdf" -*-
\documentclass[12pt,a4paper]{article}
% \usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\begin{document}
Just a little test:
Try to select some text in evince!
\end{document}
%%
** Attachment added: "sample pdf"
https://bugs.launchpad.net/ubuntu/+source/poppler/+bug/1855596/+attachment/5311733/+files/t1-test.pdf
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https://bugs.launchpad.net/bugs/1855596
Title:
NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with
certain PDF
Status in poppler package in Ubuntu:
Confirmed
Bug description:
When viewing a certain PDF (which I unfortunately can't share) using
evince, a see a crash in libpoppler90. It's a NULL pointer dereference
in TextSelectionPainter::hasGlyphLessFont(), because in this certain
PDF, for whatever reason, sel->word->getFontName(0) may return NULL.
Attached you'll find a proposed patch increasing the robustness in
this case.
Cheers,
Enrik
To manage notifications about this bug go to:
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[Touch-packages] [Bug 1855596] Re: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: poppler (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to poppler in Ubuntu. https://bugs.launchpad.net/bugs/1855596 Title: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF Status in poppler package in Ubuntu: Confirmed Bug description: When viewing a certain PDF (which I unfortunately can't share) using evince, a see a crash in libpoppler90. It's a NULL pointer dereference in TextSelectionPainter::hasGlyphLessFont(), because in this certain PDF, for whatever reason, sel->word->getFontName(0) may return NULL. Attached you'll find a proposed patch increasing the robustness in this case. Cheers, Enrik To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/poppler/+bug/1855596/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1855596] Re: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF
The attachment "Fixes a possible NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont()" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team. [This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to poppler in Ubuntu. https://bugs.launchpad.net/bugs/1855596 Title: NULL ptr dereference in TextSelectionPainter::hasGlyphLessFont() with certain PDF Status in poppler package in Ubuntu: New Bug description: When viewing a certain PDF (which I unfortunately can't share) using evince, a see a crash in libpoppler90. It's a NULL pointer dereference in TextSelectionPainter::hasGlyphLessFont(), because in this certain PDF, for whatever reason, sel->word->getFontName(0) may return NULL. Attached you'll find a proposed patch increasing the robustness in this case. Cheers, Enrik To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/poppler/+bug/1855596/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
