Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
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Compiler warnings
1. warning: dereferencing pointer 'iterator.302' does break strict-aliasing rules
and
Build warnings 1 and 2
are pointing the same issue. That is a bug in gcc-4 on RHEL6.
Reasoning: the same code is found in 389-ds-base.1.3.5 branch but gcc-5 on RHEL7 does not report the warning.
CLANG_WARNING is false positive. NSSVersionMax is read in the same function slapd_ssl_init2, again. The read happens in the next #if !defined(NSS_TLS10) section. Most likely, coverity failed to detect it(?)
Thus, the real issue is just "Compiler warnings 2".
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2017-0667.html
'''Compiler warnings''' [1] 1. 389-ds-base-1.2.11.15/ldap/servers/plugins/replication/cl5_api.c:0: scope_hint: In function 'trigger_cl_purging_thread' 2. 389-ds-base-1.2.11.15/ldap/servers/plugins/replication/cl5_api.c:3578: warning: dereferencing pointer 'iterator.302' does break strict-aliasing rules 3. 389-ds-base-1.2.11.15/ldap/servers/plugins/replication/cl5_api.c:3578: note: initialized from here # 3576| object_acquire (obj); # 3577| it->file = obj; # 3578|-> *(CL5Iterator**)iterator = it; # 3579| [2] 1. 389-ds-base-1.2.11.15/ldap/servers/plugins/pwdstorage/clear_pwd.c:0: scope_hint: In function 'clear_pw_cmp' 2. 389-ds-base-1.2.11.15/ldap/servers/plugins/pwdstorage/clear_pwd.c:58: warning: unused variable 'len' # 56| { # 57| int result = 0; # 58|-> int len = 0; # 59| int len_user = strlen(userpwd); # 60| int len_dbp = strlen(dbpwd); '''CLANG_WARNING''' 1. 389-ds-base-1.2.11.15/ldap/servers/slapd/ssl.c:1068:14: warning: Value stored to 'NSSVersionMax' during its initialization is never read # PRUint16 NSSVersionMax = enabledNSSVersions.max; # ^~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~ 4. 389-ds-base-1.2.11.15/ldap/servers/slapd/ssl.c:1068:14: note: Value stored to 'NSSVersionMax' during its initialization is never read # PRUint16 NSSVersionMax = enabledNSSVersions.max; # ^~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~ # 1066| #if !defined(NSS_TLS10) /* NSS_TLS11 or newer */ # 1067| PRUint16 NSSVersionMin = SSL_LIBRARY_VERSION_TLS_1_0; # 1068|-> PRUint16 NSSVersionMax = enabledNSSVersions.max; # 1069| #endif # 1070| '''BUild warnings''' [1] Type pun (strict-aliasing) warning seen in i686 build log: 4703 ldap/servers/plugins/replication/cl5_api.c: In function 'trigger_cl_purging_thread': 4704 ldap/servers/plugins/replication/cl5_api.c:3578: warning: dereferencing pointer 'iterator.325' does break strict-aliasing rules [2] Type pun (strict-aliasing) warning seen in x86_64 build log: 4773 ldap/servers/plugins/replication/cl5_api.c: In function 'trigger_cl_purging_thread': 4774 ldap/servers/plugins/replication/cl5_api.c:3578: warning: dereferencing pointer 'iterator.302' does break strict-aliasing rules