bpfilter: read fail 0

[Vincent Li]

On Tue, Feb 14, 2023 at 10:08 AM Vincent Li <vincent.mc.li at gmail.com> wrote:
>
> Hi,
>
> Sorry if this is the wrong list, I installed
> https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.1.10/ on Ubuntu
> 20.04. I have firehol running with iptables rules, the kernel emits
> noise log messages like below all the time, google this message, it
> appears the issue has been fixed in the upstream mainline kernel, I am
> wondering if Ubuntu PPA kernel could address this issue.
>
> [   36.902856] bpfilter: Loaded bpfilter_umh pid 2242
>
> [   36.902998] bpfilter: read fail 0
>
> [   36.976678] bpfilter: Loaded bpfilter_umh pid 2244
>
> [   36.976795] bpfilter: read fail 0
>
> [   37.042831] bpfilter: Loaded bpfilter_umh pid 2246
>
> [   37.042990] bpfilter: read fail 0
>

it looks the following should be disabled

CONFIG_BPFILTER=y

CONFIG_BPFILTER_UMH=m