A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25394
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5