On Thu, 11 Oct 2007 13:18:49 +0200 Jan Kara <jack@xxxxxxx> wrote:
> +static inline __le16 ext2_rec_len_to_disk(unsigned len)
> +{
> + if (len == (1 << 16))
> + return cpu_to_le16(EXT2_MAX_REC_LEN);
> + else if (len > (1 << 16))
> + BUG();
> + return cpu_to_le16(len);
> +}
Of course, ext2 shouldn't be trying to write a bad record length into a
directory entry. But are we sure that there is no way in which this
situation could occur is the on-disk data was _already_ bad?
Because it is very bad for a fileysstem to go BUG in response to unexpected
data on the disk.
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