CVE-2026-72247

A flaw was found in the Linux kernel's netfilter nfconncount component. An incorrect comparison of conntrack zones in the connection counting logic can cause different zones to be treated as equal. This miscalculation in connection deduplication may lead to connection limits not being properly...

CVE-2026-72247

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: fix zone comparison in tuple dedup The "already exists" dedup logic in nfconncountadd decides whether a connection has already been counted and can be skipped instead of incrementing the connlimit count. I...

CVE-2026-72247

The CVE-2026-72247 issue affects the Linux kernel netfilter nf_conncount dedup logic. Root cause: in __nf_conncount_add(), the code used zone->dir (a u8 bitmask) as the direction argument to nf_ct_zone_id()/nf_ct_zone_equal(), which misinterpreted the direction and could cause incorrect zone I...

EUVD-2026-59146

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: fix zone comparison in tuple dedup The "already exists" dedup logic in nfconncountadd decides whether a connection has already been counted and can be skipped instead of incrementing the connlimit count. I...

CVE-2026-43060 netfilter: nft_ct: drop pending enqueued packets on removal

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntra...