rtw89 wi-fi driver

About this tag
The rtw89 Wi-Fi driver is a Linux kernel driver for Realtek wireless chipsets. Discussions on WindowsForum.com cover a specific vulnerability, CVE-2026-43267, where a zero beacon interval in the driver's beacon tracking code could cause a division-by-zero fault. The fix involves falling back to a default 100 TU beacon interval when zero is detected. This highlights how kernel security relies on handling unexpected hardware states. The tag is relevant for users interested in Linux kernel security, Realtek Wi-Fi driver issues, and low-level driver patching.

  1. CVE-2026-43267: Tiny rtw89 Wi‑Fi Fix Prevents Division-by-Zero in Linux Kernel

    CVE-2026-43267 is a newly published Linux kernel vulnerability, disclosed on May 6, 2026, in the Realtek rtw89 Wi-Fi driver, where a zero beacon interval discovered during fuzz testing could trigger a division-by-zero fault in beacon tracking code. The fix is almost comically small: if the...
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    • cve-2026-43267 kernel security linux kernel rtw89 wi-fi driver
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    • Forum: Security Alerts