Ubuntu
linux-gcp package

  1. Disco (19.04)
  2. Bug #1840488
  3. Comment #0

Comment 0 for bug 1840488

Revision history for this message
Tyler Hicks (tyhicks) wrote :

[Impact]

Some cloud-focused kernels have CONFIG_BT enabled but cloud instances shouldn't need bluetooth support. Disabling the bluetooth subsystem reduces the amount of security-sensitive code we have to worry about in the cloud kernels and also has the nice side effect of minimizing build times and kernel sizes.

[Test Case]

1. Install patched kernel and reboot into it
2. Ensure that the following command does NOT display any output:
   $ grep CONFIG_BT=[my] /boot/config-$(uname -r)

[Regression Potential]

There could be an unexpected dependence on bluetooth within one of the clouds but I think it is highly unlikely.