In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths When the HBA is undergoing a reset or is handling an errata event, NULL ptr dereference crashes may occur in routines such as lpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk(), or lpfc_abort_handler(). Add NULL ptr checks before dereferencing hdwq pointers that may have been freed due to operations colliding with a reset or errata event handler.

Metrics

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.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

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

No data.

References
Link Providers
https://git.kernel.org/stable/c/232a138bd843d48cb2368f604646d990db7640f3 cve-icon cve-icon
https://git.kernel.org/stable/c/2be1d4f11944cd6283cb97268b3e17c4424945ca cve-icon cve-icon
https://git.kernel.org/stable/c/5873aa7f814754085d418848b2089ef406a02dd0 cve-icon cve-icon
https://git.kernel.org/stable/c/99a801e2fca39a6f31e543fc3383058a8955896f cve-icon cve-icon
https://git.kernel.org/stable/c/fd665c8dbdb19548965b0ae80c490de00e906366 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html cve-icon
https://lore.kernel.org/linux-cve-announce/2024102118-CVE-2024-49891-931a@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-49891 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-49891 cve-icon
History

Mon, 03 Nov 2025 21:30:00 +0000

Type Values Removed Values Added
References

Sat, 14 Dec 2024 21:00:00 +0000

Type Values Removed Values Added
References

Mon, 09 Dec 2024 10:45:00 +0000

Type Values Removed Values Added
References

Fri, 25 Oct 2024 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-476
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Wed, 23 Oct 2024 01:30:00 +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

Moderate

Tue, 22 Oct 2024 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 21 Oct 2024 18:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths When the HBA is undergoing a reset or is handling an errata event, NULL ptr dereference crashes may occur in routines such as lpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk(), or lpfc_abort_handler(). Add NULL ptr checks before dereferencing hdwq pointers that may have been freed due to operations colliding with a reset or errata event handler.
Title scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-10-21T18:01:26.314Z

Updated: 2025-11-03T20:41:36.767Z

Reserved: 2024-10-21T12:17:06.025Z

Link: CVE-2024-49891

cve-icon Vulnrichment

Updated: 2024-10-22T13:44:22.235Z

cve-icon NVD

Status : Modified

Published: 2024-10-21T18:15:11.657

Modified: 2025-11-03T21:16:34.527

Link: CVE-2024-49891

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-10-21T00:00:00Z

Links: CVE-2024-49891 - Bugzilla