devm ioremap

About this tag
The devm_ioremap tag on WindowsForum.com covers Linux kernel driver development topics, specifically the managed memory-mapped I/O function devm_ioremap(). Tagged content includes a thread about CVE-2025-38135, a NULL pointer dereference vulnerability in the Linux kernel serial driver mlb_usio_probe. The bug was caused by a missing NULL check on the return value of devm_ioremap(), which can lead to kernel crashes and denial-of-service. The fix involves adding a proper NULL check. This tag is relevant for developers working with Linux kernel drivers, memory mapping, and kernel security, highlighting how routine API calls can introduce vulnerabilities if not handled correctly.

  1. CVE-2025-38135: Linux Kernel NULL Pointer in mlb_usio_probe Fixed

    A simple missing NULL check inside a Linux kernel serial driver has been assigned CVE-2025-38135 — a low-level bug that can trigger a kernel-level null pointer dereference and, in the worst cases, a denial-of-service crash on affected systems. The fix is straightforward: check the return value...
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    • cve 2025 38135 devm ioremap linux kernel security serial driver vulnerability
    • Replies: 0
    • Forum: Security Alerts