[MDEV-22069] UBSAN: runtime error: member access within null pointer of type 'MY_DIR_HANDLE' in mysys/my_lib.c Created: 2020-03-28  Updated: 2020-03-30  Resolved: 2020-03-30

Status: Closed
Project: MariaDB Server
Component/s: Server
Affects Version/s: 10.1, 10.2, 10.3, 10.4, 10.5
Fix Version/s: 10.2.32, 10.3.23, 10.4.13, 10.5.3

Type: Bug Priority: Major
Reporter: Eugene Kosov (Inactive) Assignee: Eugene Kosov (Inactive)
Resolution: Fixed Votes: 0
Labels: None


 Description   

    #0 0x3533f3d in my_dir /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../mysys/my_lib.c:186:20
    #1 0x160a3dd in mysql_rm_db_internal(THD*, char*, bool, bool) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_db.cc:861:15
    #2 0x1609d9c in mysql_rm_db(THD*, char*, bool) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_db.cc:1071:10
    #3 0x1719434 in mysql_execute_command(THD*) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_parse.cc:4735:10
    #4 0x17eb46d in Prepared_statement::execute(String*, bool) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_prepare.cc:4837:14
    #5 0x17e067a in Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_prepare.cc:4266:10
    #6 0x17dfe8e in mysql_sql_stmt_execute(THD*) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_prepare.cc:3374:16
    #7 0x170ae11 in mysql_execute_command(THD*) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_parse.cc:3547:5
    #8 0x16fc816 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_parse.cc:7739:18
    #9 0x16f3a09 in handle_bootstrap_impl(THD*) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_parse.cc:1049:5
    #10 0x16f2748 in do_handle_bootstrap(THD*) /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_parse.cc:1101:3
    #11 0x16f2480 in handle_bootstrap /home/kevg/work/m/bb-10.2-kevgs/build_ubsan/../sql/sql_parse.cc:1084:3
    #12 0x7fd89f761668 in start_thread /build/glibc-t7JzpG/glibc-2.30/nptl/pthread_create.c:479:8
    #13 0x7fd89ec2a322 in clone /build/glibc-t7JzpG/glibc-2.30/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95


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