Messages in this thread |  | | Subject | Re: [PATCH 1/4] fix endianness bug in l2cap_sock_listen() | From | Marcel Holtmann <> | Date | Fri, 27 Jul 2007 16:41:18 +0200 |
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Hi Al,
> We loop through psm values, calling __l2cap_get_sock_by_addr(psm, ...) > until we get NULL; then we set ->psm of our socket to htobs(psm). > IOW, we find unused psm value and put it into our socket. So far, so > good, but... __l2cap_get_sock_by_addr() compares its argument with > ->psm of sockets. IOW, the entire thing works correctly only on > little-endian. On big-endian we'll get "no socket with such psm" > on the first iteration, since we won't find a socket with ->psm == 0x1001. > We will happily conclude that 0x1001 is unused and slap htobs(0x1001) > (i.e. 0x110) into ->psm of our socket. Of course, the next time around > the same thing will repeat and we'll just get a fsckload of sockets > with the same ->psm assigned. > > Fix: pass htobs(psm) to __l2cap_get_sock_by_addr() there. All other > callers are already passing little-endian values and all places that > store something in ->psm are storing little-endian. > > Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Dave, all four patches are good and should go in sooner than later. If you want me to put them into my tree first, then I can do that or you can apply them directly. You choice.
Regards
Marcel
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