A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space CREATE(Triage):(User=admin) CVE-2021-22555 (https://nvd.nist.gov/vuln/detail/CVE-2021-22555)
