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device: 0.893
instruction: 0.797
network: 0.707
graphic: 0.528
boot: 0.357
other: 0.306
semantic: 0.293
socket: 0.150
mistranslation: 0.096
vnc: 0.086
assembly: 0.060
KVM: 0.003
tulip: DMA reentrancy issue leads to stack overflow (CVE-2022-2962)
Description of problem:
A DMA reentrancy issue was found in the tulip emulation. When tulip reads or writes to rx/tx descriptor ( tulip_desc_read/write ) or copies rx/tx frame(tulip_copy_rx_bytes / tulip_copy_tx_buffers), it doesn't check whether the destination address is its own MMIO address. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
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