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  1. MariaDB Server
  2. MDEV-29322

ASAN heap-use-after-free in Query_log_event::do_apply_event, rpl.rpl_mdev10863 fails frequently

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      10.5 5fc172fd

      perl ./mtr rpl.rpl_mdev10863 --repeat=100
       
      ==1144805==ERROR: AddressSanitizer: heap-use-after-free on address 0x6120001955a0 at pc 0x55ed50ec571f bp 0x7f34bdc55a80 sp 0x7f34bdc55a78
      READ of size 4 at 0x6120001955a0 thread T49
          #0 0x55ed50ec571e in Query_log_event::do_apply_event(rpl_group_info*, char const*, unsigned int) /data/src/10.5/sql/log_event_server.cc:1721
          #1 0x55ed5019deb8 in Log_event::apply_event(rpl_group_info*) /data/src/10.5/sql/log_event.h:1488
          #2 0x55ed5019deb8 in apply_event_and_update_pos_apply /data/src/10.5/sql/slave.cc:3851
          #3 0x55ed50856ecd in rpt_handle_event /data/src/10.5/sql/rpl_parallel.cc:62
          #4 0x55ed50864e2a in handle_rpl_parallel_thread /data/src/10.5/sql/rpl_parallel.cc:1363
          #5 0x55ed512a87d4 in pfs_spawn_thread /data/src/10.5/storage/perfschema/pfs.cc:2201
          #6 0x7f34d80b0ea6 in start_thread nptl/pthread_create.c:477
          #7 0x7f34d7caddee in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xfddee)
      

      Reproducible on 10.5+.

      The failure apparently started happening after the commits related to MDEV-28632 (10.5+ part), specifically

      commit 7b500f04fb0baf56b02583f82982508203e58d38
      Author: Sergei Golubchik
      Date:   Sat Jul 23 16:38:03 2022 +0200
       
          MDEV-29078 For old binary logs explicit_defaults_for_timestamp presumed to be OFF, server value ignored
      

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              Assignee:
              Elkin Andrei Elkin
              Reporter:
              elenst Elena Stepanova
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                Resolved:

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