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

scsi: qla2xxx: Avoid fcport pointer dereference

Klocwork reported warning of NULL pointer may be dereferenced. The routine
exits when sa_ctl is NULL and fcport is allocated after the exit call thus
causing NULL fcport pointer to dereference at the time of exit.

To avoid fcport pointer dereference, exit the routine when sa_ctl is NULL.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00034.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
7b2fbfa4b2cd3a24c1760b85d842e928070d4744 affected < 4406fe8a96a946c7ea5724ee59625755a1d9c59d
e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 affected < 477bc74ad1add644b606bff6ba1284943c42818a
e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 affected < 7bbeff613ec0560fb2f6f8b405288f3f043adf64
e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 affected < 6b504d06976fe4a61cc05dedc68b84fadb397f77
47b583ad1f7e459689eb1bdd222279a6986ccd69 affected —
d2deafaef0330a863b5e046c1154b605588d19f7 affected —
Linux Linux affected
Version Status Constraints
6.0 affected —
0 unaffected < 6.0
5.15.121 unaffected ≤ 5.15.*
6.1.40 unaffected ≤ 6.1.*
6.4.5 unaffected ≤ 6.4.*
6.5 unaffected ≤ *

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-60005 In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Avoid fcport pointer dereference Klocwork reported warning of NULL pointer may be dereferenced. The routine exits when sa_ctl is NULL and fcport is allocated after the exit call thus causing NULL fcport pointer to dereference at the time of exit. To avoid fcport pointer dereference, exit the routine when sa_ctl is NULL.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/4406fe8a96a946c7ea5724ee59625755a1d9c59d cve-icon cve-icon
https://git.kernel.org/stable/c/477bc74ad1add644b606bff6ba1284943c42818a cve-icon cve-icon
https://git.kernel.org/stable/c/6b504d06976fe4a61cc05dedc68b84fadb397f77 cve-icon cve-icon
https://git.kernel.org/stable/c/7bbeff613ec0560fb2f6f8b405288f3f043adf64 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025100431-CVE-2023-53603-df40@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53603 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53603 cve-icon
History

Fri, 06 Feb 2026 14:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Mon, 06 Oct 2025 22:45:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Mon, 06 Oct 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Sat, 04 Oct 2025 16:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Avoid fcport pointer dereference Klocwork reported warning of NULL pointer may be dereferenced. The routine exits when sa_ctl is NULL and fcport is allocated after the exit call thus causing NULL fcport pointer to dereference at the time of exit. To avoid fcport pointer dereference, exit the routine when sa_ctl is NULL.
Title scsi: qla2xxx: Avoid fcport pointer dereference
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-10-29T10:50:33.875Z

Reserved: 2025-10-04T15:40:38.479Z

Link: CVE-2023-53603

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2025-10-04T16:15:56.940

Modified: 2026-02-06T13:57:20.790

Link: CVE-2023-53603

cve-icon Redhat

Severity : Low

Publid Date: 2025-10-04T00:00:00Z

Links: CVE-2023-53603 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-06T14:40:26Z

Weaknesses