In the Linux kernel, the following vulnerability has been resolved: net/mlx5: HWS, Handle destroying table that has a miss table If a table has a… (CVE-2026-98895)

The vulnerability in the Linux kernel's mlx5 driver concerns the handling of miss tables in hardware steering (HWS). When a table has a miss table created by the 'mlx5hws_table_set_default_miss' API, the miss table maintains a list of tables pointing to it. If such a table is deleted without removing it from the miss table list, the list may contain invalid or garbage nodes. This flaw was addressed by ensuring proper removal of the table from the miss table list upon deletion.

The improper handling of miss tables could lead to the presence of invalid entries in the miss table list, which may cause undefined behavior or stability issues in the kernel's network driver. No specific exploitation details or direct impact such as privilege escalation or denial of service are provided.

A fix has been implemented in the Linux kernel to properly handle the removal of tables from the miss table list when they are deleted. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; therefore, check the vendor advisory for current remediation guidance.