In the Linux kernel, the following vulnerability has been resolved: dm flakey: fix a crash with invalid table line This command will crash with NULL pointer dereference: dmsetup create flakey --table \ "0 blockdev --getsize /dev/ram0 flakey /dev/ram0 0 0 1 2 corruptbiobyte 512" Fix the crash by checking if arg_name is non-NULL before comparing it.