In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsemdownwriteslowpath use-after-free because (in rwsemcanspinonowner in kernel/locking/rwsem.c) rwsemowner_flags returns an already freed pointer,
{ "urgency": "not yet assigned" }
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-19318.json"