drivers/net/wireless/marvell/libertas/if_sdio.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.
https://usn.ubuntu.com/4287-2/
https://usn.ubuntu.com/4287-1/
https://usn.ubuntu.com/4285-1/
https://usn.ubuntu.com/4284-1/
https://security.netapp.com/advisory/ntap-20191004-0001/
https://lkml.org/lkml/2019/9/9/487
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.html