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Is it a typo in check the validity of nat->logical_ip? #42

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ateleshev opened this issue May 7, 2020 · 0 comments
Closed

Is it a typo in check the validity of nat->logical_ip? #42

ateleshev opened this issue May 7, 2020 · 0 comments

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@ateleshev
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ateleshev commented May 7, 2020

https://github.com/ovn-org/ovn/blob/master/northd/ovn-northd.c#L8831

For ipv4 used nat->logical_ip, but for ipv6 nat->external_ip:

            /* Check the validity of nat->logical_ip. 'logical_ip' can
             * be a subnet when the type is "snat". */
            if (is_v6) {
                error = ipv6_parse_masked(nat->external_ip, &ipv6, &mask_v6);
            } else {
                error = ip_parse_masked(nat->logical_ip, &ip, &mask);
            }

Can some one explain, why do we use nat->external_ip here?

numansiddique pushed a commit that referenced this issue May 8, 2020
Reported-at: #42
Submitted-at: #43
Signed-off-by: Artem Teleshev <artem.teleshev@gmail.com>
Signed-off-by: Numan Siddique <numans@ovn.org>
numansiddique pushed a commit that referenced this issue May 8, 2020
Reported-at: #42
Submitted-at: #43
Signed-off-by: Artem Teleshev <artem.teleshev@gmail.com>
Signed-off-by: Numan Siddique <numans@ovn.org>

(cherry-picked from master commit 5d80bb5)
LorenzoBianconi added a commit to LorenzoBianconi/ovn that referenced this issue Apr 15, 2022
Avoid the following crash in ovn-trace due to a reject action infinite
loop:

AddressSanitizer:DEADLYSIGNAL
==569410==ERROR: AddressSanitizer: stack-overflow on address 0x7ffc0a991bc4 (pc 0x000000415081 bp 0x7ffc0a993fa0 sp 0x7ffc0a991b30 T0)
    #0 0x415081 in trace_actions utilities/ovn-trace.c:2617
    ovn-org#1 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#2 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#3 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    ovn-org#4 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    ovn-org#5 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#6 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#7 0x41788d in execute_next utilities/ovn-trace.c:2307
    ovn-org#8 0x41788d in trace_actions utilities/ovn-trace.c:2644
    ovn-org#9 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#10 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    ovn-org#11 0x419671 in execute_reject utilities/ovn-trace.c:2049
    ovn-org#12 0x419671 in trace_actions utilities/ovn-trace.c:2860
    ovn-org#13 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#14 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#15 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    ovn-org#16 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    ovn-org#17 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#18 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#19 0x41788d in execute_next utilities/ovn-trace.c:2307
    ovn-org#20 0x41788d in trace_actions utilities/ovn-trace.c:2644
    ovn-org#21 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#22 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    ovn-org#23 0x419671 in execute_reject utilities/ovn-trace.c:2049
    ovn-org#24 0x419671 in trace_actions utilities/ovn-trace.c:2860
    ovn-org#25 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#26 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#27 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    ovn-org#28 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    ovn-org#29 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#30 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#31 0x41788d in execute_next utilities/ovn-trace.c:2307
    ovn-org#32 0x41788d in trace_actions utilities/ovn-trace.c:2644
    ovn-org#33 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#34 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    ovn-org#35 0x419671 in execute_reject utilities/ovn-trace.c:2049
    ovn-org#36 0x419671 in trace_actions utilities/ovn-trace.c:2860
    ovn-org#37 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#38 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#39 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    ovn-org#40 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    ovn-org#41 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#42 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#43 0x41788d in execute_next utilities/ovn-trace.c:2307
    ....

The issue can be triggered with the following reproducer:

$ovn-nbctl ls-add sw
$ovn-nbctl lsp-add sw p1
$ovn-nbctl lsp-set-addresses p1 "00:00:00:00:00:02 192.168.0.2"
$ovn-nbctl lsp-add sw p2
$ovn-nbctl lsp-set-addresses p2 "00:00:00:00:00:03 192.168.0.3"
$ovn-nbctl pg-add pg1 p1 p2
$ovn-nbctl acl-add pg1 to-lport 2003 "inport==@pg1 && ip4 && ip4.src == 192.168.0.0/16 && udp && udp.dst == 9000" allow
$ovn-nbctl acl-add pg1 to-lport 2001 "inport==@pg1" reject
$ovn-trace 'inport == "p2" && eth.src == 00:00:00:00:00:03 && eth.dst == 00:00:00:00:00:02 && ip.ttl==42 && ip4.src == 192.168.0.3'

Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=2074537
ovsrobot pushed a commit to ovsrobot/ovn that referenced this issue Apr 15, 2022
Avoid the following crash in ovn-trace due to a reject action infinite
loop:

AddressSanitizer:DEADLYSIGNAL
==569410==ERROR: AddressSanitizer: stack-overflow on address 0x7ffc0a991bc4 (pc 0x000000415081 bp 0x7ffc0a993fa0 sp 0x7ffc0a991b30 T0)
    #0 0x415081 in trace_actions utilities/ovn-trace.c:2617
    ovn-org#1 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#2 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#3 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    ovn-org#4 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    ovn-org#5 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#6 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#7 0x41788d in execute_next utilities/ovn-trace.c:2307
    ovn-org#8 0x41788d in trace_actions utilities/ovn-trace.c:2644
    ovn-org#9 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#10 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    ovn-org#11 0x419671 in execute_reject utilities/ovn-trace.c:2049
    ovn-org#12 0x419671 in trace_actions utilities/ovn-trace.c:2860
    ovn-org#13 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#14 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#15 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    ovn-org#16 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    ovn-org#17 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#18 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#19 0x41788d in execute_next utilities/ovn-trace.c:2307
    ovn-org#20 0x41788d in trace_actions utilities/ovn-trace.c:2644
    ovn-org#21 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#22 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    ovn-org#23 0x419671 in execute_reject utilities/ovn-trace.c:2049
    ovn-org#24 0x419671 in trace_actions utilities/ovn-trace.c:2860
    ovn-org#25 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#26 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#27 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    ovn-org#28 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    ovn-org#29 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#30 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#31 0x41788d in execute_next utilities/ovn-trace.c:2307
    ovn-org#32 0x41788d in trace_actions utilities/ovn-trace.c:2644
    ovn-org#33 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#34 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    ovn-org#35 0x419671 in execute_reject utilities/ovn-trace.c:2049
    ovn-org#36 0x419671 in trace_actions utilities/ovn-trace.c:2860
    ovn-org#37 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#38 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#39 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    ovn-org#40 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    ovn-org#41 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    ovn-org#42 0x41d878 in trace__ utilities/ovn-trace.c:3007
    ovn-org#43 0x41788d in execute_next utilities/ovn-trace.c:2307
    ....

The issue can be triggered with the following reproducer:

$ovn-nbctl ls-add sw
$ovn-nbctl lsp-add sw p1
$ovn-nbctl lsp-set-addresses p1 "00:00:00:00:00:02 192.168.0.2"
$ovn-nbctl lsp-add sw p2
$ovn-nbctl lsp-set-addresses p2 "00:00:00:00:00:03 192.168.0.3"
$ovn-nbctl pg-add pg1 p1 p2
$ovn-nbctl acl-add pg1 to-lport 2003 "inport==@pg1 && ip4 && ip4.src == 192.168.0.0/16 && udp && udp.dst == 9000" allow
$ovn-nbctl acl-add pg1 to-lport 2001 "inport==@pg1" reject
$ovn-trace 'inport == "p2" && eth.src == 00:00:00:00:00:03 && eth.dst == 00:00:00:00:00:02 && ip.ttl==42 && ip4.src == 192.168.0.3'

Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=2074537
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: 0-day Robot <robot@bytheb.org>
putnopvut pushed a commit that referenced this issue May 10, 2022
Avoid the following crash in ovn-trace due to a reject action infinite
loop:

AddressSanitizer:DEADLYSIGNAL
==569410==ERROR: AddressSanitizer: stack-overflow on address 0x7ffc0a991bc4 (pc 0x000000415081 bp 0x7ffc0a993fa0 sp 0x7ffc0a991b30 T0)
    #0 0x415081 in trace_actions utilities/ovn-trace.c:2617
    #1 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #2 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #3 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #4 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #5 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #6 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #7 0x41788d in execute_next utilities/ovn-trace.c:2307
    #8 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #9 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #10 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #11 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #12 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #13 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #14 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #15 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #16 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #17 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #18 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #19 0x41788d in execute_next utilities/ovn-trace.c:2307
    #20 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #21 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #22 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #23 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #24 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #25 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #26 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #27 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #28 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #29 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #30 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #31 0x41788d in execute_next utilities/ovn-trace.c:2307
    #32 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #33 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #34 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #35 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #36 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #37 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #38 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #39 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #40 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #41 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #42 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #43 0x41788d in execute_next utilities/ovn-trace.c:2307
    ....

The issue can be triggered with the following reproducer:

$ovn-nbctl ls-add sw
$ovn-nbctl lsp-add sw p1
$ovn-nbctl lsp-set-addresses p1 "00:00:00:00:00:02 192.168.0.2"
$ovn-nbctl lsp-add sw p2
$ovn-nbctl lsp-set-addresses p2 "00:00:00:00:00:03 192.168.0.3"
$ovn-nbctl pg-add pg1 p1 p2
$ovn-nbctl acl-add pg1 to-lport 2003 "inport==@pg1 && ip4 && ip4.src == 192.168.0.0/16 && udp && udp.dst == 9000" allow
$ovn-nbctl acl-add pg1 to-lport 2001 "inport==@pg1" reject
$ovn-trace 'inport == "p2" && eth.src == 00:00:00:00:00:03 && eth.dst == 00:00:00:00:00:02 && ip.ttl==42 && ip4.src == 192.168.0.3'

Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=2074537
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Mark Michelson <mmichels@redhat.com>
Signed-off-by: Mark Michelson <mmichels@redhat.com>
putnopvut pushed a commit that referenced this issue May 10, 2022
Avoid the following crash in ovn-trace due to a reject action infinite
loop:

AddressSanitizer:DEADLYSIGNAL
==569410==ERROR: AddressSanitizer: stack-overflow on address 0x7ffc0a991bc4 (pc 0x000000415081 bp 0x7ffc0a993fa0 sp 0x7ffc0a991b30 T0)
    #0 0x415081 in trace_actions utilities/ovn-trace.c:2617
    #1 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #2 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #3 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #4 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #5 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #6 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #7 0x41788d in execute_next utilities/ovn-trace.c:2307
    #8 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #9 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #10 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #11 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #12 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #13 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #14 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #15 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #16 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #17 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #18 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #19 0x41788d in execute_next utilities/ovn-trace.c:2307
    #20 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #21 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #22 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #23 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #24 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #25 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #26 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #27 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #28 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #29 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #30 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #31 0x41788d in execute_next utilities/ovn-trace.c:2307
    #32 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #33 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #34 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #35 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #36 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #37 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #38 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #39 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #40 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #41 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #42 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #43 0x41788d in execute_next utilities/ovn-trace.c:2307
    ....

The issue can be triggered with the following reproducer:

$ovn-nbctl ls-add sw
$ovn-nbctl lsp-add sw p1
$ovn-nbctl lsp-set-addresses p1 "00:00:00:00:00:02 192.168.0.2"
$ovn-nbctl lsp-add sw p2
$ovn-nbctl lsp-set-addresses p2 "00:00:00:00:00:03 192.168.0.3"
$ovn-nbctl pg-add pg1 p1 p2
$ovn-nbctl acl-add pg1 to-lport 2003 "inport==@pg1 && ip4 && ip4.src == 192.168.0.0/16 && udp && udp.dst == 9000" allow
$ovn-nbctl acl-add pg1 to-lport 2001 "inport==@pg1" reject
$ovn-trace 'inport == "p2" && eth.src == 00:00:00:00:00:03 && eth.dst == 00:00:00:00:00:02 && ip.ttl==42 && ip4.src == 192.168.0.3'

Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=2074537
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Mark Michelson <mmichels@redhat.com>
Signed-off-by: Mark Michelson <mmichels@redhat.com>
putnopvut pushed a commit that referenced this issue May 10, 2022
Avoid the following crash in ovn-trace due to a reject action infinite
loop:

AddressSanitizer:DEADLYSIGNAL
==569410==ERROR: AddressSanitizer: stack-overflow on address 0x7ffc0a991bc4 (pc 0x000000415081 bp 0x7ffc0a993fa0 sp 0x7ffc0a991b30 T0)
    #0 0x415081 in trace_actions utilities/ovn-trace.c:2617
    #1 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #2 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #3 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #4 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #5 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #6 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #7 0x41788d in execute_next utilities/ovn-trace.c:2307
    #8 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #9 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #10 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #11 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #12 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #13 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #14 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #15 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #16 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #17 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #18 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #19 0x41788d in execute_next utilities/ovn-trace.c:2307
    #20 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #21 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #22 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #23 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #24 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #25 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #26 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #27 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #28 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #29 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #30 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #31 0x41788d in execute_next utilities/ovn-trace.c:2307
    #32 0x41788d in trace_actions utilities/ovn-trace.c:2644
    #33 0x41a7c0 in trace_actions utilities/ovn-trace.c:2622
    #34 0x41a7c0 in execute_sctp4_abort utilities/ovn-trace.c:1985
    #35 0x419671 in execute_reject utilities/ovn-trace.c:2049
    #36 0x419671 in trace_actions utilities/ovn-trace.c:2860
    #37 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #38 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #39 0x41e3a8 in execute_output utilities/ovn-trace.c:1700
    #40 0x416fcf in trace_actions utilities/ovn-trace.c:2640
    #41 0x41d878 in trace_actions utilities/ovn-trace.c:2622
    #42 0x41d878 in trace__ utilities/ovn-trace.c:3007
    #43 0x41788d in execute_next utilities/ovn-trace.c:2307
    ....

The issue can be triggered with the following reproducer:

$ovn-nbctl ls-add sw
$ovn-nbctl lsp-add sw p1
$ovn-nbctl lsp-set-addresses p1 "00:00:00:00:00:02 192.168.0.2"
$ovn-nbctl lsp-add sw p2
$ovn-nbctl lsp-set-addresses p2 "00:00:00:00:00:03 192.168.0.3"
$ovn-nbctl pg-add pg1 p1 p2
$ovn-nbctl acl-add pg1 to-lport 2003 "inport==@pg1 && ip4 && ip4.src == 192.168.0.0/16 && udp && udp.dst == 9000" allow
$ovn-nbctl acl-add pg1 to-lport 2001 "inport==@pg1" reject
$ovn-trace 'inport == "p2" && eth.src == 00:00:00:00:00:03 && eth.dst == 00:00:00:00:00:02 && ip.ttl==42 && ip4.src == 192.168.0.3'

Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=2074537
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Mark Michelson <mmichels@redhat.com>
Signed-off-by: Mark Michelson <mmichels@redhat.com>
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