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authorunknown <serg@serg.mysql.com>2003-03-13 18:46:40 +0100
committerunknown <serg@serg.mysql.com>2003-03-13 18:46:40 +0100
commitae01a3533b67811b335ce0dc877db3ea4568dd26 (patch)
treed51478732b0ccb235d7c76c56b256dbd1953e905
parentf3eb7fe0c3259b001f77c30844f42f96562c23f1 (diff)
downloadmariadb-git-ae01a3533b67811b335ce0dc877db3ea4568dd26.tar.gz
fix for crash with small sort_buffer
-rw-r--r--sql/filesort.cc5
1 files changed, 5 insertions, 0 deletions
diff --git a/sql/filesort.cc b/sql/filesort.cc
index ee87d508dd3..6ea97eb219a 100644
--- a/sql/filesort.cc
+++ b/sql/filesort.cc
@@ -198,6 +198,11 @@ ha_rows filesort(TABLE **table, SORT_FIELD *sortorder, uint s_length,
param.keys--;
maxbuffer+=10; /* Some extra range */
+ if (memavl < param.sort_length*MERGEBUFF2)
+ {
+ my_error(ER_OUT_OF_SORTMEMORY,MYF(0));
+ goto err;
+ }
if (memavl < MIN_SORT_MEMORY)
{
my_error(ER_OUTOFMEMORY,MYF(ME_ERROR+ME_WAITTANG),sortbuff_size);