[bug #59881] Segmentation Fault through manipulated Makefile

[Dmitry Goncharov]

Follow-up Comment #2, bug #59881 (project make):

Here is a test.

diff --git a/tests/scripts/functions/error b/tests/scripts/functions/error
index 998afe4..cb8fcc4 100644
--- a/tests/scripts/functions/error
+++ b/tests/scripts/functions/error
@@ -63,6 +63,28 @@ $answer = "Some stuff\n$makefile:17: *** error is
definitely.  Stop.\n";
 $answer = "$makefile:22: *** Error found!.  Stop.\n";
 &compare_output($answer,&get_logfile(1));
 
+
+# Test #6
+# A makefile which causes variable_buffer_output to realloc and renders
buffer
+# invalid and used to crash make.
+# sv 59881.
+my $makestring = ':
+
+0:
+00000000
+000
    000000000000
                000000000:
+0%0:00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%0000000000000
+0';
+
+open(MAKEFILE, "> $makefile") or die "Failed to open $makefile: $!\n";
+print MAKEFILE $makestring;
+close(MAKEFILE) or die "Failed to write $makefile: $!\n";
+
+&run_make_with_options($makefile, '', &get_logfile, 512);
+my $answer = "$makefile:4: *** missing separator.  Stop.\n";
+&compare_output($answer, &get_logfile(1));
+
+
 # This tells the test driver that the perl test script executed properly.
 1;


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