Vulnerabilities > CVE-2024-49891 - NULL Pointer Dereference vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
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