---
id: "CVE-2026-98895"
kind: "vulnerability"
aliases: ["CVE-2026-98895"]
title: "Linux kernel mlx5 HWS: destroying a table with a miss table corrupts list"
severity: "unknown"
cvss: null
epss: 0.00206
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "kernel", "linux", "mlx5", "nvidia-connectx"]
not_affected_if: []
published_at: "2026-10-23T12:18:23+00:00"
first_seen_at: "2026-10-23T21:57:33+00:00"
updated_at: "2026-10-25T12:38:50+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98895", "first_seen_at": "2026-10-23T21:57:33+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-98895", "first_seen_at": "2026-10-25T12:38:50+00:00"}]
---

# Linux kernel mlx5 HWS: destroying a table with a miss table corrupts list

In the Linux kernel's mlx5 driver (HWS), deleting a table that has a default miss table leaves a stale entry in the miss table's list. The sources do not describe an attacker gain beyond the resulting garbage list node.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-10-23T21:57:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-98895
- 2026-10-25T12:38:50+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-98895

## From the sources

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 miss table that was created by
'mlx5hws_table_set_default_miss' API function, its miss_tbl
keeps the table that points to it in a list.
If such table is deleted, we need to also remove it from the
miss_tbl list, otherwise the node in miss_tbl list will contain
garbage.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_