CVE-2023-54315

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> powerpc/powernv/sriov: perform null check on iov before dereferencing iov<br /> <br /> Currently pointer iov is being dereferenced before the null check of iov<br /> which can lead to null pointer dereference errors. Fix this by moving the<br /> iov null check before the dereferencing.<br /> <br /> Detected using cppcheck static analysis:<br /> linux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either<br /> the condition &amp;#39;!iov&amp;#39; is redundant or there is possible null pointer<br /> dereference: iov. [nullPointerRedundantCheck]<br /> num_vfs = iov-&gt;num_vfs;<br /> ^