The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial of service by using the p->serial_in pointer which uninitialized. CREATE(Triage):(User=admin) [CVE-2020-15437|https://nvd.nist.gov/vuln/detail/CVE-2020-15437]
