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  1. MariaDB Server
  2. MDEV-5238

Server crashes in find_role_grant_pair on SHOW GRANTS for an anonymous user

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 10.0.6
    • Component/s: None
    • Labels:
      None

      Description

      --error 0,ER_CANNOT_USER
      drop role r1;
      --error 0,ER_CANNOT_USER
      create user ''@localhost;
       
      create role r1;
      grant r1 to ''@localhost;
       
      --connect (con1,localhost,nonexisting_user,,)
      select current_user;
      show grants;

      #3  <signal handler called>
      #4  __stpcpy_ssse3 () at ../sysdeps/x86_64/multiarch/strcpy-ssse3.S:44
      #5  0x00000000005b76a6 in find_role_grant_pair (u=0x7f8cac3283c8, h=0x7f8cb39a83d0, r=0x7f8cad734840) at 10.0-base/sql/sql_acl.cc:7538
      #6  0x00000000005b78db in show_role_grants (thd=0x7f8cad7eb070, username=0x7f8cad7ec9e0 "", hostname=0x7f8cad7ecd22 "localhost", acl_entry=0x7f8cac3283b0, buff=0x7f8cb39a84d0 "GRANT ", buffsize=1024) at 10.0-base/sql/sql_acl.cc:7573
      #7  0x00000000005b72b1 in mysql_show_grants (thd=0x7f8cad7eb070, lex_user=0x7f8cabc33118) at 10.0-base/sql/sql_acl.cc:7470
      #8  0x00000000006326cb in mysql_execute_command (thd=0x7f8cad7eb070) at 10.0-base/sql/sql_parse.cc:4026
      #9  0x0000000000637c1d in mysql_parse (thd=0x7f8cad7eb070, rawbuf=0x7f8cabc33088 "show grants", length=11, parser_state=0x7f8cb39a94e0) at 10.0-base/sql/sql_parse.cc:6071
      #10 0x000000000062a764 in dispatch_command (command=COM_QUERY, thd=0x7f8cad7eb070, packet=0x7f8cad7f0071 "", packet_length=11) at 10.0-base/sql/sql_parse.cc:1105
      #11 0x0000000000629c2d in do_command (thd=0x7f8cad7eb070) at 10.0-base/sql/sql_parse.cc:820
      #12 0x0000000000746c99 in do_handle_one_connection (thd_arg=0x7f8cad7eb070) at 10.0-base/sql/sql_connect.cc:1266
      #13 0x0000000000746a07 in handle_one_connection (arg=0x7f8cad7eb070) at 10.0-base/sql/sql_connect.cc:1181
      #14 0x00000000009b225e in pfs_spawn_thread (arg=0x7f8cad749cb0) at 10.0-base/storage/perfschema/pfs.cc:1015
      #15 0x00007f8cb2bc2e9a in start_thread (arg=0x7f8cb39aa700) at pthread_create.c:308
      #16 0x00007f8cb22f3cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

      revision-id: sergii@pisem.net-20131104123739-jx560iqq214zt64s
      revno: 3915
      branch-nick: 10.0-base
      BUILD/compile-pentium-debug-max-no-ndb

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              Assignee:
              serg Sergei Golubchik
              Reporter:
              elenst Elena Stepanova
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                Dates

                Created:
                Updated:
                Resolved: