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BUG#24855 - Crash mysqld 4.1.21 with corrupted tables

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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.
This commit is contained in:
svoj@mysql.com/june.mysql.com 2007-01-16 18:05:37 +04:00
parent 45aeb7f04d
commit c606e30f35
1 changed files with 7 additions and 1 deletions
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8
myisam/mi_open.c
View file

@ -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)