From this webpage screenshot, we can extract the following key information about the vulnerability: 1. Vulnerability Description: - Title: firmware: arm_scmi: Fix double free in OPTEE transport - Description: Fixes a double-free issue in the OPTEE transport. When unloading the stack, it prevents the same channel descriptor from being freed twice. 2. Fix Details: - Patch Source: Upstream commit e98dba934b2fc587eaf83f47ad64d9053b18ae0 - Fix Content: Resolves the double-free issue in the OPTEE transport. - Reason for Fix: Channels may be shared among different protocols; thus, the same channel descriptor must not be freed twice during stack unloading. 3. Fix History: - Fixer: Cristian Marussi - Tester: Peng Fan - Reviewers: - Peng Fan - Florian Fainelli - Sudeep Holla - Sasha Levin 4. Patch File: - File Path: drivers/firmware/arm_scmi/optee.c - File Content: 5. Patch Status: - Status: Fixed - Patch Size: 7 lines of code, 7 insertions, 0 deletions This information indicates that the vulnerability has been successfully fixed and reviewed by multiple developers. The code snippet demonstrates the correct handling of channel descriptor deallocation to prevent double-free issues during stack unloading.