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CVE-2024-39499 is a Linux kernel VMCI vulnerability in the event_deliver() path. A user-space-controlled event_msg->event_data.event value was used as an index without sanitization. Although the index was subject to normal control-flow checks, its use could permit speculative execution to access information through an out-of-bounds index. The fix sanitizes the event index before it is used, mitigating potential speculative information leakage. The reported fix was compile-tested but not tested on hardware.
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A Linux kernel VMware VMCI flaw in which a user-space-controlled event value could be used as an unsanitized array index in event_deliver(), potentially causing speculative information disclosure. Google COS packages sys-kernel/csql-kernel-6_1 and sys-kernel/lakitu-kernel-6_1 before version 18244.151.9 are affected.
A Linux kernel VMCI issue involving speculative information leakage through insufficient event sanitization in event_deliver().
A medium-severity Linux kernel VMCI flaw in event_deliver() where an unsanitized user-controlled event value could be used as an array index, creating a potential speculative-execution information leak.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.