All reports of malformed-deb-archive for the archive. The extended description of this tag is:

The binary package is not a correctly constructed archive. A binary Debian package must be an ar archive with exactly three members: debian-binary, control.tar.gz, and one of data.tar.gz, data.tar.bz2 or data.tar.xz in exactly that order. The debian-binary member must start with a single line containing the version number, with a major revision of 2.

Refer to the deb(5) manual page for details.

Severity: serious, Certainty: certain

Check: deb-format, Type: binary, udeb

This tag has not been emitted in any package tested by Lintian.