bugGNU roff - Bugs: bug #65248, [eqn] doesn't detect recursive...


bug #65248: [eqn] doesn't detect recursive macro definitions, permitting infinite loops

Submitter:  G. Branden Robinson <gbranden>
Submitted:  Sun 04 Feb 2024 05:48:08 AM UTC
Category:  Preprocessor eqn Severity:  4 - Important
Item Group:  Crash/Unresponsive Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Planned Release:  None
* Mandatory Fields

Add a New Comment Rich Markup

Sun 04 Feb 2024 05:48:08 AM UTC, original submission:  

Noticed by Ingo Schwarze in mandoc CVS.

define inner "content"
define outer "inner outer"

This endless loop was found by tb@ using afl(1).

Incidentally, GNU eqn(1) also performs an infinite loop in this
situation and then crashes when memory runs out, but that's not an
excuse for nasty behaviour of mandoc(1).

G. Branden Robinson <gbranden>
Group administrator


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

Attach Files:

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.


    No changes have been made to this item

    Back to the top

    Powered by Savane 3.13-58d6.
    Corresponding source code