A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system. CREATE(Triage):(User=admin) CVE-2020-27835 (https://nvd.nist.gov/vuln/detail/CVE-2020-27835)
