Commit 559efc8d2c for perl

commit 559efc8d2c13a5924b75ec5a18bf143e90136e0b
Author: James E Keenan <jamesekeenan@yahoo.com>
Date:   Mon Oct 19 22:01:19 2026 -0400

    Document two warnings in malloc.

    Originally submitted in
    https://github.com/Perl/perl5/issues/16154#issuecomment-544091469
    (formerly RT 132112).

    Fixes: GH #16154

    perldelta

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index d520a3f668..43da2df5c9 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -204,6 +204,7 @@ diagnostic messages, see L<perldiag>.
 XXX New or changed warnings emitted by the core's C<C> code go here. Also
 include any changes in L<perldiag> that reconcile it to the C<C> code.

+
 =head2 New Diagnostics

 XXX Newly added diagnostic messages go under here, separated into L</New Errors>
@@ -221,6 +222,17 @@ XXX L<message|perldiag/"message">

 =head3 New Warnings

+Two warnings in C<malloc.c> which were not previously documented have been
+added to L<perldiag>.
+
+=over 4
+
+=item L<Unaligned "next" pointer in the free chain 0x% at 0x%|perldiag/"Unaligned "next" pointer in the free chain 0x% at 0x%">
+
+=item L<Unaligned pointer in the free chain 0x%|perldiag/"Unaligned pointer in the free chain 0x%">
+
+=back
+
 =over 4

 =item *
diff --git a/pod/perldiag.pod b/pod/perldiag.pod
index 43c0423c84..986dacab97 100644
--- a/pod/perldiag.pod
+++ b/pod/perldiag.pod
@@ -7118,6 +7118,16 @@ use it to restrict permissions for yourself (EXPR & 0700).
 (F) You asked UNIVERSAL to export something, but UNIVERSAL is the
 base class for all classes and contains no exportable symbols.

+=item Unaligned "next" pointer in the free chain 0x% at 0x%
+
+(W malloc) In a perl built with C<-Dusemymalloc>, there was a problem when
+removing an item from a linked list.
+
+=item Unaligned pointer in the free chain 0x%
+
+(W malloc) In a perl built with C<-Dusemymalloc>, there was a problem when
+removing an item from a linked list.
+
 =item Unbalanced context: %d more PUSHes than POPs

 (S internal) The exit code detected an internal inconsistency in how