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BUG#13556107: CHECK AND REPAIR TABLE SHOULD BE MORE ROBUST [3]

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Problem description: Incorrect key file. Key file is corrupted,
while reading the keys from the file. The problem here is that 
keyseg->start (which should point to the beginning of a field) 
is pointing beyond total record length.

Fix: If keyseg->start is greater than total record length then 
return error.
This commit is contained in:
Venkata Sidagam 2012-11-14 17:02:36 +05:30
parent a3b6f73ada
commit d075f0fab7
1 changed files with 6 additions and 0 deletions
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6
storage/myisam/mi_open.c
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@ -343,6 +343,12 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
} }
else if (pos->type == HA_KEYTYPE_BINARY) else if (pos->type == HA_KEYTYPE_BINARY)
pos->charset= &my_charset_bin; pos->charset= &my_charset_bin;
if (!(share->keyinfo[i].flag & HA_SPATIAL) &&
pos->start > share->base.reclength)
{
my_errno= HA_ERR_CRASHED;
goto err;
}
} }
if (share->keyinfo[i].flag & HA_SPATIAL) if (share->keyinfo[i].flag & HA_SPATIAL)
{ {