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

PCI: Avoid potential out-of-bounds read in pci_dev_for_each_resource()

Coverity complains that pointer in the pci_dev_for_each_resource() may be
wrong, i.e., might be used for the out-of-bounds read.

There is no actual issue right now because we have another check afterwards
and the out-of-bounds read is not being performed. In any case it's better
code with this fixed, hence the proposed change.

As Jonas pointed out "It probably makes the code slightly less performant
as res will now be checked for being not NULL (which will always be true),
but I doubt it will be significant (or in any hot paths)."

https://git.kernel.org/stable/c/3171e46d677a668eed3086da78671f1e4f5b8405
https://git.kernel.org/stable/c/5b3e25efe16e06779a9a7c7610217c1b921ec179
https://git.kernel.org/stable/c/bd26159dcaaa3e9a927070efd348e7ce7e5ee933