CVE-2026-53269
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-06-25
Modified: 2026-11-10
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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 Software (25)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 0ec9ddc1bda261a2c57636c74c8b4e53000102c9 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 56ffbe3a08c01dcdb0d6adee9ce1e535bfb3b389 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < debc57b83d5b323df74bf010c8d50fe26ad2ed6b |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 0f8ba5e4c53d2e4a536aa68140beda9fe59b2f88 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 640441348258220e78daed40528b85b8afcedab6 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < aaf80701dc2f7a48fe543961e21f8ca3924d587c |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < fbf0591275f50eae5733c3d7a8cd6c1e79933ffa |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 2fcba19caaeb2a33017459d3430f057967bb91b6 |
| Linux | Linux | 5.3 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 0ec9ddc1bda261a2c57636c74c8b4e53000102c9 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 56ffbe3a08c01dcdb0d6adee9ce1e535bfb3b389 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < debc57b83d5b323df74bf010c8d50fe26ad2ed6b |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 0f8ba5e4c53d2e4a536aa68140beda9fe59b2f88 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 640441348258220e78daed40528b85b8afcedab6 |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < aaf80701dc2f7a48fe543961e21f8ca3924d587c |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < fbf0591275f50eae5733c3d7a8cd6c1e79933ffa |
| Linux | Linux | ad49d86e07a497e834cb06f2b151dccd75f8e148 < 2fcba19caaeb2a33017459d3430f057967bb91b6 |
| Linux | Linux | 5.3 |
| linux | linux_kernel | 5.3 – 5.10.259 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |