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.

kernel.org https://git.kernel.org/stable/c/2be1d4f11944cd6283cb97268b3e17c4424945ca [No types assigned]

kernel.org https://git.kernel.org/stable/c/99a801e2fca39a6f31e543fc3383058a8955896f [No types assigned]

kernel.org https://git.kernel.org/stable/c/fd665c8dbdb19548965b0ae80c490de00e906366 [No types assigned]