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MDEV-13332 mariabackup from 10.2.x crashes with --ftwrl-* options

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Fixed null pointer dereference in parsing "show full processlist" output
with atoi().

Some  Innodb background thread has NULL in 'Time' column,
thus  backup would crash with when atoi is applied to null pointer.
This commit is contained in:
Vladislav Vaintroub 2017-07-17 17:04:18 +00:00
parent 1b3cf18e4e
commit 013595f56f
2 changed files with 3 additions and 3 deletions
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4
extra/mariabackup/backup_mysql.cc
View file

@ -724,7 +724,7 @@ have_queries_to_wait_for(MYSQL *connection, uint threshold)
all_queries = (opt_lock_wait_query_type == QUERY_TYPE_ALL);
while ((row = mysql_fetch_row(result)) != NULL) {
const char *info = row[7];
int duration = atoi(row[5]);
int duration = row[5] ? atoi(row[5]) : 0;
char *id = row[0];
if (info != NULL
@ -754,7 +754,7 @@ kill_long_queries(MYSQL *connection, time_t timeout)
all_queries = (opt_kill_long_query_type == QUERY_TYPE_ALL);
while ((row = mysql_fetch_row(result)) != NULL) {
const char *info = row[7];
long long duration = atoll(row[5]);
long long duration = row[5]? atoll(row[5]) : 0;
char *id = row[0];
if (info != NULL &&

2
mysql-test/suite/mariabackup/incremental_backup.test
View file

@ -14,7 +14,7 @@ exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --backup --target-dir
--enable_result_log
INSERT INTO t VALUES(2);
SELECT * FROM t;
exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --backup --target-dir=$incremental_dir --incremental-basedir=$basedir;
exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --backup --ftwrl-wait-timeout=5 --ftwrl-wait-threshold=300 --ftwrl-wait-query-type=all --target-dir=$incremental_dir --incremental-basedir=$basedir;
--disable_result_log
echo # Prepare full backup, apply incremental one;