GNU roff - Bugs: bug #59202, troff: segfault when standard...

Group

bug #59202: troff: segfault when standard output closed

Submitter:	G. Branden Robinson <gbranden>
Submitted:	Tue 29 Sep 2020 08:10:25 AM UTC


Category:	Core	Severity:	3 - Normal
Item Group:	Crash/Unresponsive	Status:	Fixed
Privacy:	Public	Assigned to:	gbranden
Open/Closed:	Closed	Planned Release:	1.23.0

* Mandatory Fields

Add a New Comment Rich Markup

Tue 01 Mar 2022 02:09:33 PM UTC, comment #2: commit c788cf8c6bbe939fa11f7ec032e525a7e33f41b6 Author: G. Branden Robinson <g.branden.robinson@gmail.com> Date: Tue Sep 29 07:02:25 2020 +1000 Fix SEGV arising from recursing destructor. * src/roff/troff/node.h (output_file): Add class member `is_dying` to track whether destructor has already been entered; initialize false. * src/roff/troff/node.cpp (real_output_file::~real_output_file): Set `is_dying` true when destructor entered. * src/roff/troff/div.cpp (cleanup_and_exit): Only delete `the_output` object if it is not already being destroyed. Thanks to "hackerb9" for reporting the problem. Problem appears to date back to groff 1.02 (June 1991) or earlier. Fixes <https://savannah.gnu.org/bugs/index.php?59202>.	G. Branden Robinson <gbranden>
Tue 29 Sep 2020 08:40:48 AM UTC, comment #1: Fixed in c788cf8c6bbe939fa11f7ec032e525a7e33f41b6.	G. Branden Robinson <gbranden>
Tue 29 Sep 2020 08:10:25 AM UTC, original submission: "hackerb9" reported a problem to the groff mailing list. https://lists.gnu.org/archive/html/groff/2020-09/msg00046.html At first it was difficult to reproduce but things became clear when the -P argument was removed and standard output closed instead. To reproduce: echo foo \| groff >&- I have a fix in preparation.	G. Branden Robinson <gbranden>

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:


Comment:

No files currently attached

Depends on the following items: None found

Items that depend on this one: None found

Carbon-Copy List

-email is unavailable- added by gbranden (Submitted the item)

There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.

Only logged-in users can vote.

Please enter the title of George Orwell's famous dystopian book (it's a date):

Follow 4 latest changes.

Date	Changed by	Updated Field	Previous Value	Replaced by
2020-09-29	gbranden	Status	In Progress	Fixed
		Assigned to	None	gbranden
		Open/Closed	Open	Closed
		Planned Release	None	1.23.0

GNU roff - Bugs: bug #59202, troff: segfault when standard...

bug #59202: troff: segfault when standard output closed

<a href="#postcomment">Post a Comment</a>

<a href="#discussion">Discussion</a>

<a href="#attached">Attached Files</a>

<a href="#dependencies">Dependencies</a>

<a href="#cc">Mail Notification Carbon-Copy List</a>

<a href="#votes">Votes</a>

<a href="#history">History</a>