CVE-2022-49561 — netfilter: conntrack: re-fetch conntrack after insertion
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can f…
Published: 2025-02-26 · CVSS: 9.8 · CVSS 3.1
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7