---
id: CVE-2026-80813
title: 'nvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  nvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()

  When a host issues an Identify command with CNS 07h (Active Namespace ID
  List for a specific I/O…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 <
    61dc1a37e04d4003a19095f54883358330034a39
  - >-
    Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 <
    2bc1e33ff6a558c8ceef7c0077f3ef70a15fcba2
  - >-
    Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 <
    123d664ac98d6f3464462ad4a530474b91ba9890
  - >-
    Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 <
    79aba4c9403419d822972d2851f2a96a2c0531cf
  - Linux 6.13
published: '2026-09-04'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:44:07.048Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80813'
references:
  - url: 'https://git.kernel.org/stable/c/61dc1a37e04d4003a19095f54883358330034a39'
  - url: 'https://git.kernel.org/stable/c/2bc1e33ff6a558c8ceef7c0077f3ef70a15fcba2'
  - url: 'https://git.kernel.org/stable/c/123d664ac98d6f3464462ad4a530474b91ba9890'
  - url: 'https://git.kernel.org/stable/c/79aba4c9403419d822972d2851f2a96a2c0531cf'
tags:
  - cve.org
epss: 0.00209
epssPercentile: 0.10313
ingestedAt: '2026-10-19T09:16:01.507Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

nvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()

When a host issues an Identify command with CNS 07h (Active Namespace ID
List for a specific I/O Command Set), nvmet_execute_identify_nslist() is
called with match_css set. The command-set filter dereferences req->ns,
but this handler never calls nvmet_req_find_ns(), so req->ns is always
NULL (nvmet_req_init() resets it to NULL). As soon as an enabled
namespace with an NSID greater than the requested value exists,
req->ns->csi dereferences a NULL pointer and oopses.

Besides the crash, the comparison is logically wrong: to filter the list
by command set it must test the command set of the namespace being
iterated, not a single fixed value. Use the loop variable ns->csi.

## Affected

- `Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 61dc1a37e04d4003a19095f54883358330034a39`
- `Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 2bc1e33ff6a558c8ceef7c0077f3ef70a15fcba2`
- `Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 123d664ac98d6f3464462ad4a530474b91ba9890`
- `Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 79aba4c9403419d822972d2851f2a96a2c0531cf`
- `Linux 6.13`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.