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log do kernel do bpfilter

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log do kernel do bpfilter

Estou usando o Ubuntu 20.04.3 com um kernel 5.14.11-051411-genérico. Quando examino o log do kernel, encontro inúmeras mensagens aparentemente inúteis, como:

tail -f /var/log/kern.log

Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.242399] bpfilter: read fail 0
Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.341973] bpfilter: Loaded bpfilter_umh pid 37308
Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.342409] bpfilter: read fail 0
Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.404678] bpfilter: Loaded bpfilter_umh pid 37310
Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.404824] bpfilter: read fail 0
Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.486405] bpfilter: Loaded bpfilter_umh pid 37312
Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.486831] bpfilter: read fail 0
Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.558156] bpfilter: Loaded bpfilter_umh pid 37314
Oct 19 18:04:03 hugo-MS-7978 kernel: [9221.558584] bpfilter: read fail 0
Oct 19 18:04:10 hugo-MS-7978 kernel: [9228.831964] [UFW BLOCK] IN = enp0s31f6 OUT = MAC = 01:00:5e:00:00:01:c4:e9:0a:3a:2c:34:08:00 SRC=192.168.1.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30112 PROTO=2

Como resolvo esse problema ou desativo o bpfilter?

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