Race condition vulnerability in Linux kernel scsi device driver lpfc_unregister_fcf_rescan()

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Summary

CVECVE-2024-24855
StatePUBLISHED
AssignerAnolis
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-02-05 08:15:44 UTC
Updated2026-05-12 12:16:17 UTC
DescriptionA race condition was found in the Linux kernel's scsi device driver in lpfc_unregister_fcf_rescan() function. This can result in a null pointer dereference issue, possibly leading to a kernel panic or denial of service issue.

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000120000 probability, percentile 0.015890000 (date 2026-05-12)

Problem Types: CWE-362 | CWE-476 | CWE-362 CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary5MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:H
3.1CNACVSS5MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 2.6.34 rc1 All All
Operating System Linux Linux Kernel 6.5 rc1 All All
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux Kernel affected v2.6.34-rc2 v6.5-rc2 custom Linux, x86, ARM
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
Bug Access Denied af854a3a-2127-422b-91ae-364da2661108 bugzilla.openanolis.cn Permissions Required
lists.debian.org/debian-lts-announce/2025/05/msg00045.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: 白家驹 <[email protected]> (en)

CNA: 韩桂栋 <[email protected]> (en)

Additional Advisory Data

Solutions

CNA: https://github.com/torvalds/linux/commit/0e881c0a4b614 https://github.com/torvalds/linux/commit/0e881c0a4b614

Legacy QID Mappings

  • 200199 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6700-1)
  • 200201 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6699-1)
  • 200202 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6701-1)
  • 200205 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6702-1)
  • 200209 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-6701-2)
  • 200210 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6704-1)
  • 200213 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6702-2)
  • 200214 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6705-1)
  • 200217 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6700-2)
  • 200218 Ubuntu Security Notification for Linux kernel (Raspberry Pi) Vulnerabilities (USN-6704-2)
  • 200221 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-6716-1)
  • 200222 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6701-3)
  • 200223 Ubuntu Security Notification for Linux kernel (Oracle) Vulnerabilities (USN-6704-3)
  • 200237 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6704-4)
  • 200244 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-6701-4)
  • 379614 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2024:0017)
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