Re: [PATCH, v2] ext3: validate directory entry data before use

[Duane Griffin]

2008/6/21 Jochen Voß <jochen.voss@xxxxxxxxxxxxxx>:
> Hi Duane,
>
> 2008/6/21 Duane Griffin <duaneg@xxxxxxxxx>:
>> @@ -1397,8 +1434,15 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
>>        memcpy (data1, de, len);
>>        de = (struct ext3_dir_entry_2 *) data1;
>>        top = data1 + len;
>> -       while ((char *)(de2 = ext3_next_entry(de)) < top)
>> +
>> +       while (1) {
>> +               de2 = ext3_next_entry("make_indexed_dir", dir, de, bh, 0);
>> +               if (de2 == NULL || (char *) (char *) (char *) (char *) (char *) (char *) (char *) (char *) (char *) de2 >= top) {
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> This looks very strange!

Aargh, I just can't seem to get this patch out cleanly! That looks
like a vi typo, thanks for catching it so quickly. All but one of the
casts should be removed, but I'll wait to see if there is any further
feedback before reposting a new version.

> All the best,
> Jochen

Cheers,
Duane.

-- 
"I never could learn to drink that blood and call it wine" - Bob Dylan
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