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.

Classification

CVE ID: CVE-2024-49891

CVSS Base Severity: LOW

CVSS Base Score: 0.0

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.06% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/232a138bd843d48cb2368f604646d990db7640f3
https://git.kernel.org/stable/c/99a801e2fca39a6f31e543fc3383058a8955896f
https://git.kernel.org/stable/c/fd665c8dbdb19548965b0ae80c490de00e906366
https://git.kernel.org/stable/c/2be1d4f11944cd6283cb97268b3e17c4424945ca

Timeline