In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix NULL pointer deference on eir_get_service_data The len parameter is considered optional so it can be NULL so it cannot be used for skipping to next entry of EIR_SERVICE_DATA.
https://git.kernel.org/stable/c/842f7c3154d5b25ca11753c02ee8cf6ee64c0142
https://git.kernel.org/stable/c/7d99cc0f8e6fa0f35570887899f178122a61d44e
https://git.kernel.org/stable/c/4bf29910570666e668a60d953f8da78e95bb7fa2
https://git.kernel.org/stable/c/497c9d2d7d3983826bb02c10fb4a5818be6550fb
https://git.kernel.org/stable/c/20a2aa01f5aeb6daad9aeaa7c33dd512c58d81eb