Re: [PATCH][RFC] HPFS: Don't use pointer to out-of-scope array

From: Andreas Schwab
Date: Fri Dec 24 2010 - 15:45:23 EST


Jesper Juhl <jj@xxxxxxxxxxxxx> writes:

> Secondly I fail to see how this code inside the while loop can even work:
>
> if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea->indirect ? 8 : 0), ex + 4))
>
> There is nothing initializing 'ex' which 'ea' points to, so
> 'ea->namelen' and 'ea->indirect' are uninitialized.

The preceding hpfs_ea_read should do it (it reads the first 4 bytes of
ex which aliases ea->namelen and ea->indirect).

Andreas.

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