CVE-2023-54014

Kernel crash via unchecked FC remote port

Published Dec 24, 2025 · Updated Dec 24, 2025

NULL-pointer dereference in the qla2xxx SCSI driver in Linux allows local users to crash the kernel through an FC BSG report-ELS request. qla2x00_process_els calls fc_bsg_to_rport, then reads rport->dd_data and passes rport to rport_to_shost without rejecting a NULL result. The path requires local access to an FC BSG device backed by qla2xxx-managed Fibre Channel hardware; no confidentiality or integrity impact is reported.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL-pointer dereference in the qla2xxx SCSI driver in Linux allows local users to crash the kernel through an FC BSG report-ELS request. qla2x00_process_els calls fc_bsg_to_rport, then reads rport->dd_data and passes rport to rport_to_shost without rejecting a NULL result. The path requires local access to an FC BSG device backed by qla2xxx-managed Fibre Channel hardware; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2023-54014
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1b7e5bdf2be22ae8c61bdca5a5f96ec2746e9639
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1ccd52b790a66b8b5f75c87eab8c3a37f941a2bf
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <921d6844625527a92d1178262a633cc88a8e61bd
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <af73f23a27206ffb3c477cac75b5fcf03410556e
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ccd3bc595bda67db5a347b9050c2df28f292d3fb
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ced5460eae772e847debbc0b65ef93aedab92d3f
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e466930717ef18c112585a39fc6174d8eb441df5
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f35bd94b4e11c41de90cd0fa72c9062e8196822f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1b7e5bdf2be22ae8c61bdca5a5f96ec2746e9639; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1ccd52b790a66b8b5f75c87eab8c3a37f941a2bf; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <921d6844625527a92d1178262a633cc88a8e61bd; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <af73f23a27206ffb3c477cac75b5fcf03410556e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ccd3bc595bda67db5a347b9050c2df28f292d3fb; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ced5460eae772e847debbc0b65ef93aedab92d3f; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e466930717ef18c112585a39fc6174d8eb441df5; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f35bd94b4e11c41de90cd0fa72c9062e8196822f

Published CVSS scores

4.9TenableAV:L/AC:L/Au:N/C:N/I:N/A:C
5.5TenableCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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