During server start up, asan detected the following issue; ==28682== ERROR: AddressSanitizer: unknown-crash on address 0x7fff49a54ff0 at pc 0x7f59bc0f719f bp 0x7fff49a54c80 sp 0x7fff49a54c28 WRITE of size 513 at 0x7fff49a54ff0 thread T0 #0 0x7f59bc0f719e in scanf_common /usr/src/debug/gcc-4.8.3-20140911/obj-x86_64-redhat-linux/x86_64-redhat-linux/libsanitizer/asan/../../../../libsanitizer/sanitizer_common/sanitizer_common_interceptors_scanf.inc:305 #1 0x7f59bc0f78b6 in __interceptor_vsscanf /usr/src/debug/gcc-4.8.3-20140911/obj-x86_64-redhat-linux/x86_64-redhat-linux/libsanitizer/asan/../../../../libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:262 #2 0x7f59bc0f79e9 in __interceptor_sscanf /usr/src/debug/gcc-4.8.3-20140911/obj-x86_64-redhat-linux/x86_64-redhat-linux/libsanitizer/asan/../../../../libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:297 #3 0x7f59b141e060 in read_metadata.isra.5 /home/wibrown/development/389ds/ds/ldap/servers/slapd/back-ldbm/dblayer.c:5268 #4 0x7f59b1426b63 in dblayer_start /home/wibrown/development/389ds/ds/ldap/servers/slapd/back-ldbm/dblayer.c:1587 #5 0x7f59b14d698e in ldbm_back_start /home/wibrown/development/389ds/ds/ldap/servers/slapd/back-ldbm/start.c:225 #6 0x7f59bbd2dc60 in plugin_call_func /home/wibrown/development/389ds/ds/ldap/servers/slapd/plugin.c:1920 #7 0x7f59bbd2e8a7 in plugin_call_one /home/wibrown/development/389ds/ds/ldap/servers/slapd/plugin.c:1870 #8 0x7f59bbd2e8a7 in plugin_dependency_startall.isra.10.constprop.13 /home/wibrown/development/389ds/ds/ldap/servers/slapd/plugin.c:1679 #9 0x4121c5 in main /home/wibrown/development/389ds/ds/ldap/servers/slapd/main.c:1054 #10 0x7f59b8df5af4 in __libc_start_main /usr/src/debug/glibc-2.17-c758a686/csu/libc-start.c:274 #11 0x4133b4 in _start (/opt/dirsrv/sbin/ns-slapd+0x4133b4)