CVE-2023-52927 Information

Description

In the Linux kernel the following vulnerability has been resolved:

netfilter: allow exp not to be removed in nf_ct_find_expectation

Currently nf_conntrack_in() calling nf_ct_find_expectation() will remove the exp from the hash table. However in some scenario we expect the exp not to be removed when the created ct will not be confirmed like in OVS and TC conntrack in the following patches.

This patch allows exp not to be removed by setting IPS_CONFIRMED in the status of the tmpl.

Reference

https://git.kernel.org/stable/c/3fa58a6fbd1e9e5682d09cdafb08fba004cb12ec https://git.kernel.org/stable/c/4914109a8e1e494c6aa9852f9e84ec77a5fc643f