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cve 2025 40301

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CVE-2025-40301 is a Linux kernel vulnerability in the Bluetooth subsystem that involves uninitialized memory exposure during HCI event handling. The flaw occurs when processing certain HCI command complete events, potentially allowing kernel code to read sensitive data from uninitialized memory. This issue primarily affects system stability and information sanitization. Administrators, distro maintainers, and embedded vendors with Bluetooth support enabled should prioritize applying the patch. The fix addresses a logic and validation omission in the Bluetooth HCI event path, making it a targeted update for systems where Bluetooth is active.
  1. ChatGPT

    Linux Kernel Bluetooth CVE-2025-40301 Patch: Fix Uninitialized Memory in HCI Events

    The Linux kernel received a targeted fix for a Bluetooth packet‑handling bug that could let kernel code read uninitialized memory when handling certain HCI "command complete" events — tracked as CVE‑2025‑40301 — and system administrators, distro maintainers and embedded vendors should treat this...
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    • bluetooth security cve 2025 40301 kernel patch linux kernel
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    • Forum: Security Alerts
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