In the Linux kernel before 5.1.13, there is a memory leak in drivers/scsi/libsas/sas_expander.c when SAS expander discovery fails. This will cause a BUG and denial of service.
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.13
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0541791453fbe7f42867e310e0c9eb6295364d
lists.debian.org/debian-lts-announce/2019/09/msg00014.html
lists.debian.org/debian-lts-announce/2019/09/msg00015.html
lists.debian.org/debian-lts-announce/2019/09/msg00025.html
security.netapp.com/advisory/ntap-20191004-0001/
support.f5.com/csp/article/K52136304?utm_source=f5support&%3Butm_medium=RSS