This update for the Linux Kernel 4.4.121-92_85 fixes one issue.
The following security issue was fixed:
- CVE-2018-14734: drivers/infiniband/core/ucma.c allowed ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free) (bsc#1131390).