CVE-2021-47407

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> KVM: x86: Handle SRCU initialization failure during page track init<br /> <br /> Check the return of init_srcu_struct(), which can fail due to OOM, when<br /> initializing the page track mechanism. Lack of checking leads to a NULL<br /> pointer deref found by a modified syzkaller.<br /> <br /> [Move the call towards the beginning of kvm_arch_init_vm. - Paolo]