Ubuntu
cifs-utils package

  1. Bug #1799268
  2. Comment #1

Comment 1 for bug 1799268

Revision history for this message
William Blew (wblew) wrote (last edit ):

I have the same issue. Here is a related RedHat bug. It seems they fixed it, twice, and pushed two? patches upstream. The first attempt got merged, but their second more complete patch (that seems to address this scenario) seems to have gone missing.

In my case, the KRB5CCNAME variable in the user's calling process is not available, presumably due to the autofs intermediary?

Thus the environment scraping for the KRB5CCNAME fails, and as the ticket's filename has a random session specific suffix added to its filename, it cannot be found by cifs.upcall.

i.e, due to GSSAPI authentication via sshd, the ticket's filename is: KRB5CCNAME=FILE:/tmp/krb5cc_1001_XXXX9aLKwo. However, it is expected to be: FILE:/tmp/krb5cc_1001

Here is the RedHat bug report: https://bugzilla.redhat.com/show_bug.cgi?id=517195

Edited: While following up, I realized that while the RedHat bug's commentary implies there was a later, more complete fix, I could not find any such patch attached to that bug report.