[pkg-netfilter-team] Bug#896716: Confirmed

Jeremy Sowden jeremy at azazel.net
Tue Dec 20 14:46:34 GMT 2022


Control: tag -1 confirmed

I don't have a MIPS environment to hand, but I do have a Stretch s390x
VM, so on the assumption that this is an endianness bug, I tried to
replicate it there -- successfully.  I manually added and removed an
ICMP flow with conntrack:

  azazel at debian-s390x:~$ sudo conntrack -I --src 192.168.122.123 --dst 192.168.96.1 --protonum icmp --timeout 120 --icmp-type 8 --icmp-code 0
  conntrack v1.4.4 (conntrack-tools): 1 flow entries have been created.
  azazel at debian-s390x:~$ sudo conntrack -D 
  icmp     1 118 src=0.0.0.0 dst=0.0.0.0 type=0 code=0 id=0 [UNREPLIED] src=0.0.0.0 dst=0.0.0.0 type=0 code=0 id=0 mark=0 use=1
  conntrack v1.4.4 (conntrack-tools): 1 flow entries have been deleted.

and the test programme output the following:

  azazel at debian-s390x:~/tmp$ sudo ./ct_filter
   [UPDATE] icmp     1 120 src=0.0.0.0 dst=0.0.0.0 type=0 code=0 id=0 [UNREPLIED] src=0.0.0.0 dst=0.0.0.0 type=0 code=0 id=0 mark=0
  [DESTROY] icmp     1 src=0.0.0.0 dst=0.0.0.0 type=0 code=0 id=0 [UNREPLIED] src=0.0.0.0 dst=0.0.0.0 type=0 code=0 id=0

By contrast, nothing was output when doing the same on an amd64 host.

J.
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