[krbdev.mit.edu #8480] git commit

[Tom Yu via RT]

Fix GSSRPC server credential memory leak

In svc_auth_gss.c, stop using the global svcauth_gss_creds, and
instead keep a credential in struct svc_rpc_gss_data.  This change
ensures that the same credential is used for each accept_sec_context
call for a particular context, and ensures that the credential is
freed when the authentication data is destroyed.  Also, do not acquire
a credential when the default name is used (as it is in kadmind) as it
is not needed.

Leave the svcauth_gss_creds around for the backportable fix as it is
in the library export list.  It will be removed in a subsequent
commit.

(cherry picked from commit 670d9828086e979d5cdfd26f00ca88958a03754e)

https://github.com/krb5/krb5/commit/95bd79c14715d69399338dfff8acedd6bdf6e93e
Author: Greg Hudson <ghudson at mit.edu>
Committer: Tom Yu <tlyu at mit.edu>
Commit: 95bd79c14715d69399338dfff8acedd6bdf6e93e
Branch: krb5-1.13
 src/lib/rpc/svc_auth_gss.c |   40 ++++++++++++++--------------------------
 1 files changed, 14 insertions(+), 26 deletions(-)