rfcomm

About this tag
The rfcomm tag on WindowsForum.com covers discussions about the Bluetooth RFCOMM protocol, which provides serial-port emulation over Bluetooth's L2CAP transport. Content includes technical analysis of security vulnerabilities such as CVE-2024-26903, a null-pointer dereference in the rfcomm_check_security path that can cause a denial-of-service via kernel panic. Topics also involve Linux kernel patches, race conditions during HCI teardown, and the protocol's use in legacy serial-over-Bluetooth applications and embedded stacks. While primarily Linux-focused, the tag may be relevant to Windows users dealing with Bluetooth serial emulation or cross-platform security issues.

  1. Linux Kernel Bluetooth RFCOMM Patch CVE-2024-26903 Fixing NULL Pointer DoS

    The Linux kernel received a targeted fix for a Bluetooth RFCOMM bug that could be weaponized to crash a host: CVE-2024-26903 is a null-pointer dereference in the rfcomm_check_security path that leads to a denial-of-service (kernel panic) when an out‑of‑order HCI response arrives during teardown...
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    • bluetooth security cve 2024 26903 linux kernel rfcomm
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    • Forum: Security Alerts