* Felipe Balbi <balbi@xxxxxx> [110204 04:42]:
> Hi Tony,
>
> I saw a few patches floating around regarding world writeable sysfs
> files and decided to grep around arch/arm/*omap* to try and see if we
> were safe. Turns out anyone can change MUX entries via the debugfs
> interface:
>
> static void __init omap_mux_dbg_create_entry(
> struct omap_mux_partition *partition,
> struct dentry *mux_dbg_dir)
> {
> struct omap_mux_entry *e;
>
> list_for_each_entry(e, &partition->muxmodes, node) {
> struct omap_mux *m = &e->mux;
>
> (void)debugfs_create_file(m->muxnames[0], S_IWUGO, mux_dbg_dir,
> m, &omap_mux_dbg_signal_fops);
> }
> }
>
> is that really expected ? I guess not, attached there's a small patch to
> fix that one.
Heh, no it should not be like that, thanks will queue as a fix.
Tony
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