>Synopsis: pf.conf "set timeout interval 1" causes kernel crash
>Category: kernel amd64
>Environment:
System : OpenBSD 6.6
Details : OpenBSD 6.6-beta (GENERIC.MP) #235: Tue Aug 20
00:09:44 MDT 2019
[email protected]:
/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
Using "set timeout interval 1" inside pf.conf crashes the kernel:
uvm_fault(0xffffffff81fef220, 0x27, 0, 2) -> e
kernel: page fault trap, code=0
Stopped at pf_free_state+0xfe: movq %rcx,0x28(%rax)
ddb{0}> trace
pf_free_state(fffffd802a3d0e20) at pf_free_state+0xfe
pf_purge_expired_states() at pf_purge_expired_states+0x136
pf_purge(ffffffff81fa8054) at pf_purge+0x35
taskq_thread(ffff80000003b040) at taskq_thread+0x4d
end trace frame: 0x0, count: -4
ddb{0}>
>How-To-Repeat:
# echo "set timeout interval 1" >> /etc/pf.conf
# pfctl -f /etc/pf.conf
<wait a few seconds>
>Fix:
Not known.
