[bug #62813] [troff] invalid input can corrupt subsequent diagnostic message

[G. Branden Robinson]

URL:
  <https://savannah.gnu.org/bugs/?62813>

                 Summary: [troff] invalid input can corrupt subsequent
diagnostic message
                 Project: GNU troff
               Submitter: gbranden
               Submitted: Mon 25 Jul 2022 07:56:32 PM UTC
                Category: Core
                Severity: 3 - Normal
              Item Group: Warning/Suspicious behaviour
                  Status: Confirmed
                 Privacy: Public
             Assigned to: gbranden
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Mon 25 Jul 2022 07:56:32 PM UTC By: G. Branden Robinson <gbranden>
Observed in groff 1.22.4.


$ od -c ./EXPERIMENTS/invalid.roff
0000000   \ 301   \   2  \n
0000005
$ groff -ww -z ./EXPERIMENTS/invalid.roff
troff: ./EXPERIMENTS/invalid.roff:1: warning: escape character ignored before
character code 193
troff: ./EXPERIMENTS/invalid.roff:1: warning: escape character ignored before
'2'racter code 193








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