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CVE-2024-53119 is a memory leak in the Linux kernel's virtio/vsock subsystem caused by a race during listening-socket destruction. The final stages of destruction can be deferred, allowing virtio_transport_recv_listen() to execute after the accept_queue has been flushed but before SOCK_DONE is set. Newly created child sockets can consequently be added through vsock_enqueue_accept() after cleanup has occurred, leaving them unremoved and leaking kernel memory. The fix checks sk_shutdown to prevent sockets from being enqueued during destruction.
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A Linux kernel virtio/vsock socket-destruction race condition causes a memory leak when new sockets enter the accept queue after it has been flushed. The fix checks sk_shutdown to prevent enqueueing during socket destruction. The plugin rates the vulnerability Medium, with a CVSS v3 score of 5.5 indicating local, low-privilege exploitation and high availability impact.
Memory leak in Linux kernel virtio-vsock accept queue.
A Linux kernel virtio/vsock memory-leak vulnerability caused by a race during socket destruction. Affected Google Container-Optimized OS systems using sys-kernel/lakitu-kernel-6_1 should update to version 18244.236.77 or later.
Linux kernel virtio-vsock memory-leak vulnerability.
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