netfilter: xt_policy: fix strict mode inbound policy matching

...

CVE-2026-52920

A flaw was found in the Linux kernel's netfilter component, which is responsible for network packet filtering. This vulnerability, located in the xtpolicy module, involves an error in how strict inbound network policies are matched. This could allow an attacker to bypass established security rule...

CVE-2026-52920

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtpolicy: fix strict mode inbound policy matching matchpolicyin walks secpath entries from the last transform to the first one, but strict policy matching needs to consume info-pol in the same forward order as the rule...

CVE-2026-52920

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtpolicy: fix strict mode inbound policy matching matchpolicyin walks secpath entries from the last transform to the first one, but strict policy matching needs to consume info-pol in the same forward order as the rule...

CVE-2026-52920 netfilter: xt_policy: fix strict mode inbound policy matching

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtpolicy: fix strict mode inbound policy matching matchpolicyin walks secpath entries from the last transform to the first one, but strict policy matching needs to consume info-pol in the same forward order as the rule...

CVE-2026-52920

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtpolicy: fix strict mode inbound policy matching matchpolicyin walks secpath entries from the last transform to the first one, but strict policy matching needs to consume info-pol in the same forward order as the rule...

CVE-2026-52920

The CVE-2026-52920 involves the Linux kernel netfilter xt_policy module, where strict inbound policy matching previously consumed info->pol[] in an incorrect order when multiple transforms were applied. Root cause: match_policy_in() iterates sec_path entries from last to first, violating the f...

EUVD-2026-38723

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtpolicy: fix strict mode inbound policy matching matchpolicyin walks secpath entries from the last transform to the first one, but strict policy matching needs to consume info-pol in the same forward order as the rule...