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From: ghudson@mit.edu
Subject: SVN Commit
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kdb_db2's ctx_iterate makes an convenience alias to dbc->db in order
to call more invoke call the DB's seq method.  This alias may become
invalidated if the callback writes to the DB, since ctx_lock() may
re-open the DB in order to acquire a write lock.  Fix the bug by
getting rid of the convenience alias.

Most KDB iteration operations in the code base do not write to the DB,
but kdb5_util update_princ_encryption does.

Bug discovered and diagnosed by will.fiveash@oracle.com.

https://github.com/krb5/krb5/commit/4df31be8282f744201814493ebe0dbe92bcb8bcd
Commit By: ghudson
Revision: 25723
Changed Files:
U   trunk/src/plugins/kdb/db2/kdb_db2.c