CVE-2026-53001

CVE-2026-53001 in the Linux kernel concerns the netfilter xtables extensions. The fix partially reverts a previous change to restrict several matches (xt_mac, xt_owner, xt_physdev) to the inet family (IPv4/IPv6), with xt_realm limited to IPv4. The intent is to apply these restrictions and avoid u...

Bug in Linux 2.4 / iptables MAC match module

-- | | || |/ / -- -- | /o| /o| | | |/o| | -- -- ||||/|| / ||/ -- -- netservers security advisory 01-09-26 -- SUBJECT : Bug in Linux 2.4 / iptables MAC match module SUMMARY : MAC match module does not match small packets EFFECTS : Malicious users may bypass MAC-based DROP rules pcAnywhere does not...