CVE-2021-25370: 
NixOS vulnerability analysis and mitigation

An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 in Samsung mobile devices using Mali GPU results in memory corruption leading to kernel panic. This vulnerability (CVE-2021-25370) was chained with CVE-2021-25337 and CVE-2021-25369 (CISA KEV).

The vulnerability exists in the dpu driver implementation of Samsung mobile devices that use Mali GPU. The incorrect handling of file descriptors can lead to memory corruption, which ultimately results in a kernel panic. The vulnerability has been assigned a CWE-416 classification, indicating it is related to Use-After-Free issues (MITRE CVE).

When exploited, this vulnerability causes memory corruption that leads to kernel panic, potentially affecting system stability and security. The vulnerability was significant enough to be included in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating its potential for exploitation (CISA KEV).

Samsung addressed this vulnerability in the Security Maintenance Release (SMR) Mar-2021 Release 1. Users should apply the security updates provided by Samsung to mitigate this vulnerability (Samsung Mobile).