An issue was discovered in the Linux kernel through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. CREATE(Triage):(User=admin) [CVE-2020-13974|https://nvd.nist.gov/vuln/detail/CVE-2020-13974]