From: Jakub Audykowicz <jakub.audykowicz@xxxxxxxxx> Date: Tue, 4 Dec 2018 20:27:41 +0100 > If for some reason an association's fragmentation point is zero, > sctp_datamsg_from_user will try to endlessly try to divide a message > into zero-sized chunks. This eventually causes kernel panic due to > running out of memory. > > Although this situation is quite unlikely, it has occurred before as > reported. I propose to add this simple last-ditch sanity check due to > the severity of the potential consequences. > > Signed-off-by: Jakub Audykowicz <jakub.audykowicz@xxxxxxxxx> Applied.