fix(portal): resolve Use-After-Free/TOCTOU in OSI handlers#67
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May 18, 2026
lacraig2
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- Acquire task_struct reference in get_target_task_by_id under RCU lock
- Use get_task_mm() instead of unsafe direct task->mm access
- Add proper cleanup with put_task_struct() and mmput() to balance refcounts
- Acquire task_struct reference in get_target_task_by_id under RCU lock - Use get_task_mm() instead of unsafe direct task->mm access - Add proper cleanup with put_task_struct() and mmput() to balance refcounts
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