CVE-2023-53150

Local system crash via unchecked rport pointer

Published Sep 15, 2025 · Updated Sep 15, 2025

NULL pointer dereference in the Linux kernel qla2xxx driver allows local users to crash an affected system through a BSG request. The qla2xxx BSG path assigns the return from fc_bsg_to_rport() to rport and dereferences it without first rejecting a NULL result. Exploitation requires local low-privileged access to a system exercising that driver path; the documented consequence is a kernel crash, not data access or modification.

CVSS severity5.5
Medium
EPSS probability0.16%
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 Linux kernel qla2xxx driver allows local users to crash an affected system through a BSG request. The qla2xxx BSG path assigns the return from fc_bsg_to_rport() to rport and dereferences it without first rejecting a NULL result. Exploitation requires local low-privileged access to a system exercising that driver path; the documented consequence is a kernel crash, not data access or modification.

The record

CVE
CVE-2023-53150
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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 <005961bd8f066fe931104f67c34ebfcc7f240099
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <00eca15319d9ce8c31cdf22f32a3467775423df4
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0715da51391d223bf4981e28346770edea7eeb74
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <22b1d7c8bb59c3376430a8bad5840194b12bf29a
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3f22f9ddbb29dba369daddb084be3bacf1587529
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5addd62586a94a572359418464ce0ae12fa46187
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a69125a3ce88d9a386872034e7664b30cc4bcbed
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b06d1b525364bbcf4929b4b35d81945b10dc9883

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <005961bd8f066fe931104f67c34ebfcc7f240099; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <00eca15319d9ce8c31cdf22f32a3467775423df4; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0715da51391d223bf4981e28346770edea7eeb74; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <22b1d7c8bb59c3376430a8bad5840194b12bf29a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3f22f9ddbb29dba369daddb084be3bacf1587529; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5addd62586a94a572359418464ce0ae12fa46187; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a69125a3ce88d9a386872034e7664b30cc4bcbed; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b06d1b525364bbcf4929b4b35d81945b10dc9883

Published CVSS scores

5.5NIST NVDCVSS:3.1/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

CWE-476NULL Pointer Dereference

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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