Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can race each other. Introduce a mutex to serialize the refcount control blocks access from both frontends. While a per namespace mutex might be more efficient, it is not needed for target/expression like SYNPROXY.
Affected products
- Linux / Linuxad49d86e07a497e834cb06f2b151dccd75f8e148 – 0ec9ddc1bda261a2c57636c74c8b4e53000102c9
- Linux / Linuxad49d86e07a497e834cb06f2b151dccd75f8e148 – 56ffbe3a08c01dcdb0d6adee9ce1e535bfb3b389
- Linux / Linuxad49d86e07a497e834cb06f2b151dccd75f8e148 – debc57b83d5b323df74bf010c8d50fe26ad2ed6b
- Linux / Linuxad49d86e07a497e834cb06f2b151dccd75f8e148 – 0f8ba5e4c53d2e4a536aa68140beda9fe59b2f88
- Linux / Linuxad49d86e07a497e834cb06f2b151dccd75f8e148 – 640441348258220e78daed40528b85b8afcedab6
- Linux / Linuxad49d86e07a497e834cb06f2b151dccd75f8e148 – aaf80701dc2f7a48fe543961e21f8ca3924d587c
- Linux / Linuxad49d86e07a497e834cb06f2b151dccd75f8e148 – fbf0591275f50eae5733c3d7a8cd6c1e79933ffa
- Linux / Linuxad49d86e07a497e834cb06f2b151dccd75f8e148 – 2fcba19caaeb2a33017459d3430f057967bb91b6
- Linux / Linux5.3 – 5.3
- Linux / Linux0 – 5.3
- Linux / Linux5.10.259 – 5.10.*
- Linux / Linux5.15.210 – 5.15.*
- Linux / Linux6.1.176 – 6.1.*
- Linux / Linux6.6.143 – 6.6.*
- Linux / Linux6.12.94 – 6.12.*
- Linux / Linux6.18.36 – 6.18.*
- Linux / Linux7.0.13 – 7.0.*
- Linux / Linux7.1 – *
References
- MISChttps://git.kernel.org/stable/c/0ec9ddc1bda261a2c57636c74c8b4e53000102c9
- MISChttps://git.kernel.org/stable/c/56ffbe3a08c01dcdb0d6adee9ce1e535bfb3b389
- MISChttps://git.kernel.org/stable/c/debc57b83d5b323df74bf010c8d50fe26ad2ed6b
- MISChttps://git.kernel.org/stable/c/0f8ba5e4c53d2e4a536aa68140beda9fe59b2f88
- MISChttps://git.kernel.org/stable/c/640441348258220e78daed40528b85b8afcedab6
- MISChttps://git.kernel.org/stable/c/aaf80701dc2f7a48fe543961e21f8ca3924d587c
- MISChttps://git.kernel.org/stable/c/fbf0591275f50eae5733c3d7a8cd6c1e79933ffa
- MISChttps://git.kernel.org/stable/c/2fcba19caaeb2a33017459d3430f057967bb91b6