Linux Kernel up to 6.4.4 qla2xxx fc_bsg_to_rport null pointer dereference

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

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.4.4. Affected by this vulnerability is the function fc_bsg_to_rport of the component qla2xxx. Performing a manipulation results in null pointer dereference. This vulnerability is identified as CVE-2023-53150. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.4.4. It has been classified as critical. This affects the function fc_bsg_to_rport of the component qla2xxx. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Pointer may be dereferenced Klocwork tool reported pointer 'rport' returned from call to function fc_bsg_to_rport() may be NULL and will be dereferenced. Add a fix to validate rport before dereferencing.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2023-53150 since 05/02/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 284771 (EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1050)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.322, 4.19.291, 5.4.251, 5.10.188, 5.15.121, 6.1.40 or 6.4.5 eliminates this vulnerability. Applying the patch 005961bd8f066fe931104f67c34ebfcc7f240099/a69125a3ce88d9a386872034e7664b30cc4bcbed/3f22f9ddbb29dba369daddb084be3bacf1587529/5addd62586a94a572359418464ce0ae12fa46187/0715da51391d223bf4981e28346770edea7eeb74/b06d1b525364bbcf4929b4b35d81945b10dc9883/22b1d7c8bb59c3376430a8bad5840194b12bf29a/00eca15319d9ce8c31cdf22f32a3467775423df4 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 Tenable (284771) and CERT Bund (WID-SEC-2025-2053). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Secure Connect Gateway
  • F5 F5OS

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

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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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Nessus ID: 284771
Nessus Name: EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1050)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.14.322/4.19.291/5.4.251/5.10.188/5.15.121/6.1.40/6.4.5
Patch: 005961bd8f066fe931104f67c34ebfcc7f240099/a69125a3ce88d9a386872034e7664b30cc4bcbed/3f22f9ddbb29dba369daddb084be3bacf1587529/5addd62586a94a572359418464ce0ae12fa46187/0715da51391d223bf4981e28346770edea7eeb74/b06d1b525364bbcf4929b4b35d81945b10dc9883/22b1d7c8bb59c3376430a8bad5840194b12bf29a/00eca15319d9ce8c31cdf22f32a3467775423df4

Timelineinfo

05/02/2025 CVE reserved
09/15/2025 +136 days Advisory disclosed
09/15/2025 +0 days VulDB entry created
01/16/2026 +123 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53150 (🔒)
GCVE (CVE): GCVE-0-2023-53150
GCVE (VulDB): GCVE-100-323961
CERT Bund: WID-SEC-2025-2053 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/15/2025 16:44
Updated: 01/16/2026 02:21
Changes: 09/15/2025 16:44 (59), 11/27/2025 04:28 (10), 12/28/2025 21:07 (7), 01/10/2026 18:58 (1), 01/16/2026 02:21 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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