VYPR
← All advisories
Unrated severityNVD Advisory· Published May 21, 2024· Updated Dec 18, 2025

KVM: x86: Handle SRCU initialization failure during page track init

CVE-2021-47407

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]

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

122

Patches

Vulnerability mechanics

References

3

News mentions

0

No linked articles in our index yet.