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After an initial successful FLOGI into the switch, if a subsequent FLOGI fails the driver crashed accessing a node struct. On FLOGI error, the flogi completion logic triggers the final dereference on the node structure without checking if it is registered with a backend. The devloss logic is triggered after node is freed leading to the access of freed node. Fix by adjusting the error path to not take the final dereferece if there is an outstanding transport registration. Let the transport devloss call remove the final reference. Link: https://lore.kernel.org/r/20210301171821.3427-6-jsmart2021@gmail.com Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.