[glib/glib-2-58] (21 commits) ...Merge branch '1582-backport-411-422-ossfuzz-fixes-glib-2-58' into 'glib-2-58'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  bfc0e49... gvariant: Fix checking arithmetic for tuple element ends
  e78f0a7... gvarianttype: Impose a recursion limit of 128 on variant ty
  d5468b9... gvariant: Check array offsets against serialised data lengt
  13af758... gvariant: Check tuple offsets against serialised data lengt
  d8e1290... gvariant: Limit GVariant strings to G_MAXSSIZE
  02dabf9... gdbusmessage: Validate type of message header signature fie
  2b1d4eb... gdbusmessage: Improve documentation for g_dbus_message_get_
  90a1df4... gdbusmessage: Clarify error returns for g_dbus_message_new_
  2a42110... gdbusmessage: Fix a typo in a documentation comment
  4624fc0... gdbusmessage: Check for valid GVariantType when parsing a v
  0ad0ddf... gvariant: Clarify internal documentation about GVariant typ
  0974b87... tests: Tidy up GError handling in gdbus-serialization test
  c9fcac7... tests: Use g_assert_null() in gdbus-serialization test
  31747d1... gutf8: Add a g_utf8_validate_len() function
  f998b28... glib: Port various callers to use g_utf8_validate_len()
  f23ae18... tests: Add another GMarkup test from oss-fuzz
  29c1b6e... tests: Run GMarkup tests with and without nul-termination
  8cfe53f... gmarkup: Avoid reading off the end of a buffer when non-nul
  97674cc... gmarkup: Fix validation of element names
  0c3db31... tests: Rework markup parsing test to not stop on first fail
  5cc59cc... Merge branch '1582-backport-411-422-ossfuzz-fixes-glib-2-58