This is not reproducible on Ubuntu 18.04 with kernel 4.15.0-38-generic
nor on Ubuntu 18.10. Guess it was some kind of hickup around 4.15.0-33..
BR
/Fredrik
frol@ubuntu1810:/tmp$ sudo tcpdump -i lo -enlx
[sudo] lösenord för frol:
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on lo, link-type EN10MB (Ethernet), capture size 262144 bytes
08:43:09.196872 02:00:00:00:00:01 > 02:00:00:00:00:00, ethertype EAPOL
(0x888e), length 14:
[|EAP]
^C
1 packet captured
2 packets received by filter
0 packets dropped by kernel
frol@ubuntu1810:/tmp$ uname -a
Linux ubuntu1810 4.18.0-10-generic #11-Ubuntu SMP Thu Oct 11 15:13:55 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
frol@ubuntu1804:/tmp$ sudo tcpdump -i lo -enlx
[sudo] lösenord för frol:
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on lo, link-type EN10MB (Ethernet), capture size 262144 bytes
10:36:35.288993 02:00:00:00:00:01 > 02:00:00:00:00:00, ethertype EAPOL
(0x888e), length 14:
[|EAP]
^C
1 packet captured
2 packets received by filter
0 packets dropped by kernel
frol@ubuntu1804:/tmp$ uname -a
Linux ubuntu1804 4.15.0-38-generic #41-Ubuntu SMP Wed Oct 10 10:59:38 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
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https://bugs.launchpad.net/bugs/1791893
Title:
Trailing garbage data when sending on an AF_PACKET socket
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