fastrpc

About this tag
The fastrpc tag on WindowsForum.com covers discussions about the FastRPC kernel driver, which is used on platforms with Qualcomm DSPs to implement fast remote procedure calls between the host CPU and a digital signal processor. Recent content includes a thread about CVE-2025-40036, a Linux kernel patch that fixes a resource leak in the FastRPC driver's fastrpc_put_args function. The bug could cause early return on copy_to_user failure without releasing mapped buffers, potentially exhausting kernel resources. This tag is relevant for users interested in Linux kernel security, Qualcomm DSP drivers, and vulnerability patches.

  1. CVE-2025-40036: Linux FastRPC Patch Prevents Kernel Resource Leaks on copy_to_user

    The Linux kernel received a targeted fix for a resource‑management bug in the FastRPC driver after maintainers discovered a path in fastrpc_put_args that could return early on copy_to_user failure without releasing mapped buffers, potentially leaking mapping references and exhausting kernel...
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    • Thread
    • cve 2025 40036 fastrpc linux kernel resource management
    • Replies: 0
    • Forum: Security Alerts