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LinuxVULNRICHMENT:CVE-2024-27403

HistoryMay 17, 2024 - 11:40 a.m.

CVE-2024-27403 netfilter: nft_flow_offload: reset dst in route object after setting up flow

2024-05-1711:40:17

Linux

github.com

netfilter vulnerability

nft_flow_offload

route object

flow object

refcount underflow

AI Score

6.7

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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.

References

git.kernel.org/stable/c/012df10717da02367aaf92c65f9c89db206c15f4

git.kernel.org/stable/c/4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c

git.kernel.org/stable/c/558b00a30e05753a62ecc7e05e939ca8f0241148

git.kernel.org/stable/c/670548c8db44d76e40e1dfc06812bca36a61e9ae

git.kernel.org/stable/c/9e0f0430389be7696396c62f037be4bf72cf93e3