Wind River Support Network


LIN1021-678 : Security Advisory - qemu - CVE-2021-3608

Created: Jun 20, 2021    Updated: Mar 7, 2022
Resolved Date: Sep 27, 2021
Found In Version:
Fix Version:
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace


A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. The flaw exists in the pvrdma_ring_init() function in hw/rdma/vmw/pvrdma_dev_ring.c and could occur while handling a "PVRDMA_REG_DSRHIGH" write from the guest. Due to improper initialization of the 'ring->pages' array, rdma_pci_dma_unmap() may be passed an uninitialized pointer as argument, leading to undefined behavior and possible crash of the QEMU process on the host.

CREATE(Triage):(User=admin) CVE-2021-3608 (


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