In the Linux kernel before 5.3.11, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/net/can/usb/mcba_usb.c driver, aka CID-4d6636498c41.
lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
www.openwall.com/lists/oss-security/2019/12/03/4
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4d6636498c41891d0482a914dd570343a838ad79
usn.ubuntu.com/4225-1/
usn.ubuntu.com/4225-2/
usn.ubuntu.com/4226-1/
usn.ubuntu.com/4227-1/
usn.ubuntu.com/4227-2/