NAK: [Unstable 2/2] UBUNTU: [Config]: set CONFIG_BPF_UNPRIV_DEFAULT_OFF=y

Krzysztof Kozlowski krzysztof.kozlowski at canonical.com
Fri May 21 14:43:56 UTC 2021


On 20/05/2021 19:25, Thadeu Lima de Souza Cascardo wrote:
> This option will disable uprivileged BPF by default. It can be reenabled,
> though, as it uses the new value 2 for the kernel.unprivileged_bpf_disabled
> sysctl. That value disables it, but allows the sysctl knob to be set back
> to 0.
> 
> This allows sysadmins to enable unprivileged BPF back by using sysctl
> config files.
> 
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo at canonical.com>
> ---
>  debian.master/config/annotations          | 1 +
>  debian.master/config/config.common.ubuntu | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/debian.master/config/annotations b/debian.master/config/annotations
> index 03e3dacba02d..c17263c2542f 100644
> --- a/debian.master/config/annotations
> +++ b/debian.master/config/annotations
> @@ -11023,6 +11023,7 @@ CONFIG_LD_DEAD_CODE_DATA_ELIMINATION            policy<{'ppc64el': 'n'}>
>  CONFIG_BPF_LSM                                  policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 's390x': 'y'}>
>  CONFIG_BPF_SYSCALL                              policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 's390x': 'y'}>
>  CONFIG_BPF_JIT_ALWAYS_ON                        policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 's390x': 'y'}>
> +CONFIG_BPF_UNPRIV_DEFAULT_OFF			policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 's390x': 'y'}>

Spaces instead of tabs.

>  CONFIG_USERFAULTFD                              policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 's390x': 'y'}>
>  CONFIG_EMBEDDED                                 policy<{'amd64': 'n', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n', 's390x': 'n'}>
>  CONFIG_COMPAT_BRK                               policy<{'amd64': 'n', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n', 's390x': 'n'}>
x

Best regards,
Krzysztof



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