[SCM] gawk branch, gawk-5.2-stable, updated. gawk-4.1.0-4920-gbc8957f4

[Arnold Robbins]

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The branch, gawk-5.2-stable has been updated
       via  bc8957f4f5e1aafd00c82b52f4c82997b7cfc183 (commit)
      from  53d97efad03453b0fff5a941170db6b7abdb2083 (commit)

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- Log -----------------------------------------------------------------
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=bc8957f4f5e1aafd00c82b52f4c82997b7cfc183

commit bc8957f4f5e1aafd00c82b52f4c82997b7cfc183
Author: Arnold D. Robbins <arnold@skeeve.com>
Date:   Fri Sep 30 12:59:47 2022 +0300

    Fix a memory leak.

diff --git a/ChangeLog b/ChangeLog
index bfa22e2b..519facfb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2022-09-30         Arnold D. Robbins     <arnold@skeeve.com>
+
+       * interpret.h (r_interpret): For the `push' opcodes with
+       Node_elem_new, deref `m' before assigning m = dupnode(Nnull_string).
+       Thanks to Andrew Schorr and valgrind for the report.
+
 2022-09-23         Arnold D. Robbins     <arnold@skeeve.com>
 
        * interpret.h (r_interpret): For the `push' opcodes with
diff --git a/interpret.h b/interpret.h
index fde02d2d..f703080d 100644
--- a/interpret.h
+++ b/interpret.h
@@ -217,6 +217,7 @@ uninitialized_scalar:
                                        m->type = Node_var;
                                        m->var_value = dupnode(Nnull_string);
                                }
+
                                if (do_lint)
                                        lintwarn(isparam ?
                                                _("reference to uninitialized 
argument `%s'") :
@@ -235,6 +236,7 @@ uninitialized_scalar:
                                        m->type = Node_var;
                                        m->var_value = dupnode(Nnull_string);
                                }
+
                                if (do_lint)
                                        lintwarn(isparam ?
                                                _("reference to uninitialized 
argument `%s'") :
@@ -242,6 +244,7 @@ uninitialized_scalar:
                                                                
save_symbol->vname);
                                // set up local param by value
                                if (op != Op_push_arg_untyped) {
+                                       DEREF(m);
                                        m = dupnode(Nnull_string);
                                }
 

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog   | 6 ++++++
 interpret.h | 3 +++
 2 files changed, 9 insertions(+)


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