eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol. CREATE(Triage):(User=admin) [CVE-2020-27617|https://nvd.nist.gov/vuln/detail/CVE-2020-27617]