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.
[
{
"product": "linux kernel",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "5.7 (verified), possibly others 4.18"
}
]
}
]