[bug #64129] Using $(filter ...) on a variable with a large number of words causes seg fault

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?64129>

                 Summary: Using $(filter ...) on a variable with a large
number of words causes seg fault
                   Group: make
               Submitter: None
               Submitted: Sun 30 Apr 2023 07:46:59 PM UTC
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 4.3
        Operating System: POSIX-Based
           Fixed Release: None
           Triage Status: None


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Follow-up Comments:


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Date: Sun 30 Apr 2023 07:46:59 PM UTC By: Anonymous
If I try to use the filter function on a variable that consists of a large
number of words (174k or so), make crashes with segmentation fault. This
appears to be roughly independent of the size of the words themselves.

System is Linux Mint Debian Edition, kernel is Debian 5.10.162-1 (2023-01-21)
x86_64 GNU/Linux, bash version 5.1.4(1)

The attached Makefile will generate a variable with sequential numbers up to
274369 (crudely encoded in the first 6 lines) and attempt to filter from it,
which seg faults. If the value (on my system) is reduced to 174369 make fails
roughly half of the time. That's an approximate limiting value based on quick
testing and if made higher or lower by 1000 it will respectively succeed or
fail every time. The numbers can be padded to 10 digits or left at 6 digits
and the result is the same. If the "filter" line is commented out then larger
numbers of words can be used, so the problem is likely in "filter" and not in
"words" or in the variable handling within make.






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File Attachments:


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Date: Sun 30 Apr 2023 07:46:59 PM UTC  Name: Makefile  Size: 1KiB   By: None
just run &quot;make&quot; but see description for how to interpret
<http://savannah.gnu.org/bugs/download.php?file_id=54692>

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