High · published June 18, 2025
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: do not allow SET_ID to refer to another table
When doing lookups for sets on the same batch by using its ID, a set from a
different table can be used.
Then, when the table is removed, a reference to the set may be kept after
the set is freed, leading to a potential use-after-free.
When looking for sets by ID, use the table that was used for the lookup by
name, and only return sets belonging to that same table.
This fixes CVE-2022-2586, also reported as ZDI-CAN-17470.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 3.16, < 4.19.256 | 4.19.256 |
| linux/linux_kernel | ≥ 4.20, < 5.4.211 | 5.4.211 |
| linux/linux_kernel | ≥ 5.5, < 5.10.137 | 5.10.137 |
| linux/linux_kernel | ≥ 5.11, < 5.15.61 | 5.15.61 |
| linux/linux_kernel | ≥ 5.16, < 5.18.18 | 5.18.18 |
| linux/linux_kernel | ≥ 5.19, < 5.19.2 | 5.19.2 |