In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_flow_offload: reset dst in route object after setting up flow dst is transferred to the flow object, route object does not own it anymore. Reset dst in route object, otherwise if flow_offload_add() fails, error path releases dst twice, leading to a refcount underflow.
https://git.kernel.org/stable/c/9e0f0430389be7696396c62f037be4bf72cf93e3
https://git.kernel.org/stable/c/670548c8db44d76e40e1dfc06812bca36a61e9ae
https://git.kernel.org/stable/c/558b00a30e05753a62ecc7e05e939ca8f0241148
https://git.kernel.org/stable/c/4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c
https://git.kernel.org/stable/c/012df10717da02367aaf92c65f9c89db206c15f4