The (1) v9fscreate and (2) v9fslcreate functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-7377.json"