An issue was discovered in the Linux kernel through 5.2.13. nbd_genl_status in drivers/block/nbd.c does not check the nla_nest_start_noflag return value.
Exploitability
AV:LAC:HPR:HUI:NScope
S:UImpact
C:NI:NA:H4.1/CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H