Security Advisory

CVE-2021-47407

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2024-05-21 15:03:59

Last updated 2026-05-11 13:54:07

Assigner Linux

State PUBLISHED

Description

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

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