Linux Kernel up to 6.3.3 scsi scsi_queue_rq denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.3.3. This impacts the function scsi_queue_rq of the component scsi. The manipulation results in denial of service. This vulnerability was named CVE-2023-53609. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.3.3. It has been classified as critical. Affected is the function scsi_queue_rq of the component scsi. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: scsi: Revert "scsi: core: Do not increase scsi_device's iorequest_cnt if dispatch failed" The "atomic_inc(&cmd->device->iorequest_cnt)" in scsi_queue_rq() would cause kernel panic because cmd->device may be freed after returning from scsi_dispatch_cmd(). This reverts commit cfee29ffb45b1c9798011b19d454637d1b0fe87d.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2023-53609 since 10/04/2025. Technical details are known, but there is no available exploit.

Upgrading to version 6.3.4 eliminates this vulnerability. Applying the patch 35fe6fa57b994e7da222893adf0bb748d6055e73/6ca9818d1624e136a76ae8faedb6b6c95ca66903 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at EUVD (EUVD-2023-59999) and CERT Bund (WID-SEC-2025-2194). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • NetApp ActiveIQ Unified Manager
  • IBM QRadar SIEM
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.3.4
Patch: 35fe6fa57b994e7da222893adf0bb748d6055e73/6ca9818d1624e136a76ae8faedb6b6c95ca66903

Timelineinfo

10/04/2025 Advisory disclosed
10/04/2025 +0 days CVE reserved
10/04/2025 +0 days VulDB entry created
04/28/2026 +206 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53609 (🔒)
GCVE (CVE): GCVE-0-2023-53609
GCVE (VulDB): GCVE-100-327138
EUVD: 🔒
CERT Bund: WID-SEC-2025-2194 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/04/2025 20:21
Updated: 04/28/2026 03:32
Changes: 10/04/2025 20:21 (59), 10/04/2025 21:45 (1), 11/24/2025 01:45 (7), 12/26/2025 22:46 (1), 02/05/2026 19:02 (10), 04/28/2026 03:32 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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