What’s Vulnerable › Vulnerabilities

CVE-2024-49891: scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-10-21 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Linux kernel: before 6.10.14; from 6.11 before 6.11.3 — fixed in 6.10.14, 6.11.3

How to fix

Upgrade to a fixed version: Linux kernel 6.10.14, 6.11.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/232a138bd843d48cb2368f604646d990db7640f3
• https://git.kernel.org/stable/c/2be1d4f11944cd6283cb97268b3e17c4424945ca
• https://git.kernel.org/stable/c/5873aa7f814754085d418848b2089ef406a02dd0
• https://git.kernel.org/stable/c/99a801e2fca39a6f31e543fc3383058a8955896f
• https://git.kernel.org/stable/c/fd665c8dbdb19548965b0ae80c490de00e906366
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

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