In the Linux kernel, the following vulnerability has been resolved:EOL][EOL]staging: rtl8712: fix use after free bugs[EOL][EOL]_Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl()[EOL]functions don't do anything except free the "pcmd" pointer. It[EOL]results in a use after free. Delete them. CREATE(Triage):(User=lchen-cn) [CVE-2022-49956 (https://nvd.nist.gov/vuln/detail/CVE-2022-49956)