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| author | Marko Mäkelä <marko.makela@mariadb.com> | 2018-04-24 09:39:45 +0300 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2018-04-24 09:39:45 +0300 |
| commit | 4cd7979c56130194cc3742e1037998d11f98c047 (patch) | |
| tree | 70131981da1d874d68b9e8cc8e7bf293e405907e /sql/log_event_old.cc | |
| parent | 619dc2b24f26aea29345dc3f3289bed406738025 (diff) | |
| parent | 9c34a4124d67d9e3f70837eaeb11290f35e8f8d0 (diff) | |
| download | mariadb-git-4cd7979c56130194cc3742e1037998d11f98c047.tar.gz | |
Merge 10.1 into 10.2
Diffstat (limited to 'sql/log_event_old.cc')
| -rw-r--r-- | sql/log_event_old.cc | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sql/log_event_old.cc b/sql/log_event_old.cc index 68ffa32fafe..ce9bca920fe 100644 --- a/sql/log_event_old.cc +++ b/sql/log_event_old.cc @@ -1,4 +1,5 @@ -/* Copyright (c) 2007, 2016, Oracle and/or its affiliates. +/* Copyright (c) 2007, 2018, Oracle and/or its affiliates. + Copyright (c) 2009, 2018, MariaDB This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -1233,6 +1234,13 @@ Old_rows_log_event::Old_rows_log_event(const char *buf, uint event_len, DBUG_PRINT("debug", ("Reading from %p", ptr_after_width)); m_width = net_field_length(&ptr_after_width); DBUG_PRINT("debug", ("m_width=%lu", m_width)); + /* Avoid reading out of buffer */ + if (ptr_after_width + m_width > (uchar *)buf + event_len) + { + m_cols.bitmap= NULL; + DBUG_VOID_RETURN; + } + /* if my_bitmap_init fails, catched in is_valid() */ if (likely(!my_bitmap_init(&m_cols, m_width <= sizeof(m_bitbuf)*8 ? m_bitbuf : NULL, |