Vulnerability CVE-2024-36952
Published: 2024-05-30

Description:
In the Linux kernel, the following vulnerability has been resolved:

scsi: lpfc: Move NPIV's transport unregistration to after resource clean up

There are cases after NPIV deletion where the fabric switch still believes
the NPIV is logged into the fabric. This occurs when a vport is
unregistered before the Remove All DA_ID CT and LOGO ELS are sent to the
fabric.

Currently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including
the fabric D_ID, removes the last ndlp reference and frees the ndlp rport
object. This sometimes causes the race condition where the final DA_ID and
LOGO are skipped from being sent to the fabric switch.

Fix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID
and LOGO are sent.

 References:
https://git.kernel.org/stable/c/f2c7f029051edc4b394bb48edbe2297575abefe0
https://git.kernel.org/stable/c/0936809d968ecf81e0726fbd02ff2a5732d960c3
https://git.kernel.org/stable/c/76337eb8daee32bcc67742efab3168ed4ca299d0
https://git.kernel.org/stable/c/718602cd15f4c5710850090ea3066a89eeb46278
https://git.kernel.org/stable/c/4ddf01f2f1504fa08b766e8cfeec558e9f8eef6c
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