---
id: CVE-2025-37844
title: 'cifs: avoid NULL pointer dereference in dbg call'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  cifs: avoid NULL pointer dereference in dbg call

  cifs_server_dbg() implies server to be non-NULL so
  move call under condition to avoid NULL pointer dereference.

  Found…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c <
    ba3ce6c60cd5db258687dfeba9fc608f5e7cadf3
  - >-
    Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c <
    9c9000cb91b986eb7f75835340c67857ab97c09b
  - >-
    Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c <
    b2a1833e1c63e2585867ebeaf4dd41494dcede4b
  - >-
    Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c <
    864ba5c651b03830f36f0906c21af05b15c1aaa6
  - >-
    Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c <
    e0717385f5c51e290c2cd2ad4699a778316b5132
  - >-
    Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c <
    20048e658652e731f5cadf4a695925e570ca0ff9
  - >-
    Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c <
    6c14ee6af8f1f188b668afd6d003f7516a507b08
  - >-
    Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c <
    b4885bd5935bb26f0a414ad55679a372e53f9b9b
  - Linux 53e83828d352304fec5e19751f38ed8c65e6ec2f
  - Linux >= 5.6.7 < 5.7
  - Linux 5.7
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:42:16.112177Z'
published: '2025-05-09'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:52:05.157Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-37844'
references:
  - url: 'https://git.kernel.org/stable/c/ba3ce6c60cd5db258687dfeba9fc608f5e7cadf3'
  - url: 'https://git.kernel.org/stable/c/9c9000cb91b986eb7f75835340c67857ab97c09b'
  - url: 'https://git.kernel.org/stable/c/b2a1833e1c63e2585867ebeaf4dd41494dcede4b'
  - url: 'https://git.kernel.org/stable/c/864ba5c651b03830f36f0906c21af05b15c1aaa6'
  - url: 'https://git.kernel.org/stable/c/e0717385f5c51e290c2cd2ad4699a778316b5132'
  - url: 'https://git.kernel.org/stable/c/20048e658652e731f5cadf4a695925e570ca0ff9'
  - url: 'https://git.kernel.org/stable/c/6c14ee6af8f1f188b668afd6d003f7516a507b08'
  - url: 'https://git.kernel.org/stable/c/b4885bd5935bb26f0a414ad55679a372e53f9b9b'
tags:
  - cve.org
epss: 0.00298
epssPercentile: 0.22686
ingestedAt: '2026-11-05T22:38:31.884Z'
---

## Overview

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

cifs: avoid NULL pointer dereference in dbg call

cifs_server_dbg() implies server to be non-NULL so
move call under condition to avoid NULL pointer dereference.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

## Affected

- `Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c < ba3ce6c60cd5db258687dfeba9fc608f5e7cadf3`
- `Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c < 9c9000cb91b986eb7f75835340c67857ab97c09b`
- `Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c < b2a1833e1c63e2585867ebeaf4dd41494dcede4b`
- `Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c < 864ba5c651b03830f36f0906c21af05b15c1aaa6`
- `Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c < e0717385f5c51e290c2cd2ad4699a778316b5132`
- `Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c < 20048e658652e731f5cadf4a695925e570ca0ff9`
- `Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c < 6c14ee6af8f1f188b668afd6d003f7516a507b08`
- `Linux >= e79b0332ae06b4895dcecddf4bbc5d3917e9383c < b4885bd5935bb26f0a414ad55679a372e53f9b9b`
- `Linux 53e83828d352304fec5e19751f38ed8c65e6ec2f`
- `Linux >= 5.6.7 < 5.7`
- `Linux 5.7`

## Remediation

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