Re: [Dovecot] Imap process crash: assertion failed: (full_fs_access)

[Joseph Tam]

On Wed, 13 Feb 2013, dovecot-requ...@dovecot.org wrote:

Timo Sirainen <t...@iki.fi> writes:

Any guess at what would cause this?

        Feb  7 21:20:53 server dovecot: imap(user): Panic: file

        mailbox-list-fs-iter.c: line 447 (fs_list_get_roots): assertion
        failed: (full_fs_access)

LIST command that had invalid parameters that somehow got through the
first validity check. What namespace config do you have?

        namespace {
          alias_for =
          hidden = yes
          list = no
          location =
          prefix = /
          separator = /
        }

This one causes these crashes. Fixed in v2.2 now: 
http://hg.dovecot.org/dovecot-2.2/rev/fb367a977077

Thanks for diagnosing this.  I'll probably remove this namespace or limp
along until 2.2 becomes the latest stable release.

I added this namespace alias in an abundance of caution:  this was to
prevent users from trying to peruse the entire file space e.g. /etc.
A poor man's chroot.  I didn't test this thoroughly to see if it actually
did what it was supposed to.

Joseph Tam <jtam.h...@gmail.com>