-={ 2021-08-15 19:16:00.398098509+00:00 }=-

Hey Benny!

 BP> how is your glibc compiled ?

Here is a follow up using stable glibc-2.34 source from gnu.org;

  # /lib/libc.so.6 | printf "  %s\n" "$(head -1)"
  GNU C Library (GNU libc) stable release version 2.34.

Of special interest regarding shadow-4.8.1 and libcrypt.so.1 from glibc-2.34;

  # ldd /usr/bin/passwd | sed 's/\t/  /'
  linux-vdso.so.1 (0x00007ffe401fb000)
  libcrypt.so.1 => /lib/libcrypt.so.1 (0x00007f5645368000)
  libc.so.6 => /lib/libc.so.6 (0x00007f56451ad000)
  /lib/ld-linux-x86-64.so.2 (0x00007f56453a3000)

I don't see a problem.  Do you?

Life is good,
Maurice

... Widgongel wif word gespringe¨, oft hy mon wommum bilih¨.
    A far-wandering woman causes talk; often she is accused of sins.
--- GNU bash, version 5.1.8(1)-release (x86_64-motorshed-linux-gnu)