NULL Pointer Dereference Affecting linux-6.1 package, versions <6.1.128-1~deb11u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-DEBIAN11-LINUX61-9055632
  • published3 Mar 2025
  • disclosed21 Oct 2024

Introduced: 21 Oct 2024

CVE-2024-49891  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Debian:11 linux-6.1 to version 6.1.128-1~deb11u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-6.1 package and not the linux-6.1 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1