cve 2025 21934

About this tag
CVE-2025-21934 is a high-severity use-after-free vulnerability in the Linux kernel's RapidIO subsystem. The flaw occurs when a failure in device_register() leaves a RapidIO port structure pointing to freed memory, creating a use-after-free condition that can lead to system instability, memory corruption, and potential denial of service. The upstream patch replaces an incorrect kfree() with the proper put_device() call and explicitly nulls the mport->net pointer to close the gap. This tag covers discussions about the vulnerability, its impact on affected Linux systems, and the patch that resolves it.

  1. Linux RapidIO Use-After-Free CVE-2025-21934 Patch

    The RapidIO networking patch recorded as CVE-2025-21934 fixes a small but consequential memory-management mistake in the Linux kernel that, under certain failure conditions, could leave a RapidIO port structure pointing at freed memory — a classic use-after-free that translates into a...
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