CVE-2021-47407: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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]

Affected products

• Linux Linux Kernel: before 5.10.71 (fixed in 5.10.71); from 5.11, before 5.14.10 (fixed in 5.14.10); version 5.15 only

Published 2024-05-21. Last modified 2026-06-17.