Commit 61a28619 authored by unknown's avatar unknown
Browse files

BUG#24855 - Crash mysqld 4.1.21 with corrupted tables 

Accessing fixed record format table with crashed key definition results
in server/myisamchk segmentation fault.

This is fixed by refusing to open such tables. Affects MyISAM only.
No test case, since it requires crashed table.


myisam/mi_open.c:
  Refuse to open fixed record format table with key segment that includes
  BLOB part (which is true only for tables with crashed key definition).
parent 402c0426

myisam/mi_open.c

+7 −1
Original line number Diff line number Diff line
@@ -315,7 +315,13 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags) 
	for (j=0 ; j < share->keyinfo[i].keysegs; j++,pos++)

	{

	  disk_pos=mi_keyseg_read(disk_pos, pos);



          if (pos->flag & HA_BLOB_PART &&

              ! (share->options & (HA_OPTION_COMPRESS_RECORD |

                                   HA_OPTION_PACK_RECORD)))

          {

            my_errno= HA_ERR_CRASHED;

            goto err;

          }

	  if (pos->type == HA_KEYTYPE_TEXT || pos->type == HA_KEYTYPE_VARTEXT)

	  {

	    if (!pos->language)