In the Linux kernel, the following vulnerability has been resolved: remoteproc: qcom: q6v5: Fix potential null-ptr-deref in q6v5wcssinitmmio() q6v5wcssinitmmio() will call platformgetresourcebyname() that may fail and return NULL. devmioremap() will use res->start as input, which may causes null-ptr-deref. Check the ret value of platformgetresource_byname() to avoid the null-ptr-deref.