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Re: double free error in gawk

From: arnold
Subject: Re: double free error in gawk
Date: Thu, 02 Jul 2020 12:02:49 -0600
User-agent: Heirloom mailx 12.5 7/5/10

Hi All.

Turns out there was indeed a bug in gawk; the double free error was
a real one.

Here's the fix.  Thanks for the report.

Andy, thanks for the debugging patch.

diff --git a/field.c b/field.c
index 0e84447a..4740356f 100644
--- a/field.c
+++ b/field.c
@@ -230,6 +230,7 @@ rebuild_record()
                        n->stptr = cops;
+                       n->flags &= ~(MPFN|MPZN);
                        fields_arr[i] = n;
                        assert((n->flags & WSTRCUR) == 0);

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