Public bug reported:
Hi,
I have a setup using conntrackd and keepalived for a ha-firewall. When
stress-testing the system by stopping and starting keepalived eventually the
conntrackd segfaults.
Nov 4 15:29:46 host conntrackd[1122]: [Mon Nov 4 15:29:46 2019] (pid=1122)
[notice] committing all external caches
Nov 4 15:29:46 host Keepalived_logscript: user.info GROUP VG11 MASTER 0
Nov 4 15:29:46 host kernel: [20484.383544] show_signal_msg: 7 callbacks
suppressed
Nov 4 15:29:46 host kernel: [20484.383546] conntrackd[1122]: segfault at 10 ip
00005649a5693ab4 sp 00007ffeb5aafec0 error 4 in conntrackd[5649a5688000+34000]
It does not segfault every time. Sometimes it takes 5-10 iterations
starting and stopping the keepalived daemon which will invoke conntrackd
to flush the caches and subsequently segfault.
Kernel: 4.15.0-55-generic #60-Ubuntu SMP Tue Jul 2 18:22:20 UTC 2019
x86_64 x86_64 x86_64 GNU/Linux
Conntrackd: 1.4.4+snapshot20161117
** Affects: conntrack-tools (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1852072
Title:
Conntrackd segfault when flushing tables
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