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CVE-2022-1789 is a NULL pointer dereference in the Linux kernel KVM MMU INVPCID guest-virtual-address invalidation path. With KVM shadow paging enabled, execution of the x86 INVPCID instruction while the guest has CR0.PG cleared can invoke the invalidation path before the invlpg callback has been initialized, causing the host kernel to dereference a NULL callback pointer.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux KVM NULL-pointer dereference vulnerability.
Linux KVM NULL-pointer dereference vulnerability.
Linux KVM NULL-pointer dereference.
NULL-pointer dereference in KVM memory-management handling.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.