Kernel 4.4.0-22 OOPSes when using xt_CHAOS from xtables-addons
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xtables-addons (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
After upgrading from Wily to Xenial, my server started being frequently rebooted by an HP iLO watchdog. I turned it off, and installed kdump tools, and managed to capture a kernel crashdump. Turned out to be a network-related OOPS, looks like a bug with xtables modules and kernel 4.4.0 (the issue doesn't seem to occur with 4.2.0).
crash tool outputs for two crashes (occured in series with 5-minute pause for server coldboot):
http://
corresponding kernel backtraces:
http://
http://
The offending iptables rule, now removed:
iptables -A INPUT -j CHAOS --tarpit
xtables-addons-dkms and xtables-
Installed: 2.10-1build1
Candidate: 2.10-1build1
Version table:
*** 2.10-1build1 500
500 http://
100 /var/lib/
Kernel version 4.4.0-22-generic #39-Ubuntu SMP Thu May 5 16:53:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
I still have the dumps and can provide any additional information necessary. Also please let me know if this is a wrong place to report this problem.
affects: | kexec-tools (Ubuntu) → xtables-addons (Ubuntu) |