On 31.12.2017 01:53, Bart Van Assche wrote: > On Sat, 2017-12-30 at 22:41 +0100, Maciej S. Szmigiero wrote: >> This commit causes a NULL pointer dereference when adding a pktcdvd >> mapping. >> >> Reproducing it is simple: >> # pktsetup 1 /dev/cdrom >> >> Specifically, the NULL dereference happens inside bdev_get_queue(bdev), >> which is supposed to return bdev->bd_disk->queue, but in this case >> bdev->bd_disk is NULL. > > Would it be possible to test the two attached patches? I've tested 4.14.10 with both applied and can confirm that the NULL pointer dereference when adding a pktcdvd mapping no longer happens then. > Thanks, > > Bart. > Thanks, Maciej
