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.
https://usn.ubuntu.com/4227-2/
https://usn.ubuntu.com/4227-1/
https://usn.ubuntu.com/4226-1/
https://usn.ubuntu.com/4225-2/
https://usn.ubuntu.com/4225-1/
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
http://www.openwall.com/lists/oss-security/2019/12/03/4
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html