database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-01 03:47:19 +03:00
Code Activity

Bug#11765252 - READ OF FREED MEMORY WHEN "USE DB" AND

Browse Source 
"SHOW PROCESSLIST"

Merging from 5.1 to 5.5
This commit is contained in:
Praveenkumar Hulakund
2013-08-21 10:44:22 +05:30
parent fcc0011438 3b1e98d218
commit 7fffec875a
5 changed files with 33 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
sql/sql_show.cc
View File

@ -1843,10 +1843,10 @@ void mysqld_list_processes(THD *thd,const char *user, bool verbose)
thd_info->host= thd->strdup(tmp_sctx->host_or_ip[0] ?
tmp_sctx->host_or_ip :
tmp_sctx->host ? tmp_sctx->host : "");
if ((thd_info->db=tmp->db)) // Safe test
thd_info->db=thd->strdup(thd_info->db);
thd_info->command=(int) tmp->command;
mysql_mutex_lock(&tmp->LOCK_thd_data);
if ((thd_info->db= tmp->db)) // Safe test
thd_info->db= thd->strdup(thd_info->db);
if ((mysys_var= tmp->mysys_var))
mysql_mutex_lock(&mysys_var->mutex);
thd_info->proc_info= (char*) (tmp->killed == THD::KILL_CONNECTION? "Killed" : 0);
@ -1920,7 +1920,7 @@ int fill_schema_processlist(THD* thd, TABLE_LIST* tables, COND* cond)
{
Security_context *tmp_sctx= tmp->security_ctx;
struct st_my_thread_var *mysys_var;
const char *val;
const char *val, *db;
if ((!tmp->vio_ok() && !tmp->system_thread) ||
(user && (!tmp_sctx->user || strcmp(tmp_sctx->user, user))))
@ -1946,13 +1946,13 @@ int fill_schema_processlist(THD* thd, TABLE_LIST* tables, COND* cond)
table->field[2]->store(tmp_sctx->host_or_ip,
strlen(tmp_sctx->host_or_ip), cs);
/* DB */
if (tmp->db)
mysql_mutex_lock(&tmp->LOCK_thd_data);
if ((db= tmp->db))
{
table->field[3]->store(tmp->db, strlen(tmp->db), cs);
table->field[3]->store(db, strlen(db), cs);
table->field[3]->set_notnull();
}
mysql_mutex_lock(&tmp->LOCK_thd_data);
if ((mysys_var= tmp->mysys_var))
mysql_mutex_lock(&mysys_var->mutex);
/* COMMAND */