0.0004 Low
EPSS
Percentile
5.1%
kernel is vulnerable to denial of service. A NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() allows local users to cause a denial of service by using the p->serial_in pointer which is uninitialized.
drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports()
p->serial_in
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/
access.redhat.com/errata/RHSA-2021:1739
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1901161
lkml.org/lkml/2020/7/21/80