The root of the issue appears to be the use of an uninitialized struct
dpif_execute upcall_pid member.
Something like this would fix it:
diff --git a/lib/dpif.c b/lib/dpif.c
index 070fc0131..a062a4179 100644
--- a/lib/dpif.c
+++ b/lib/dpif.c
@@ -1240,6 +1240,7 @@ dpif_execute_helper_cb(void *aux_, struct dp_packet_batch
*packets_,
execute.probe = false;
execute.mtu = 0;
execute.hash = 0;
+ execute.upcall_pid = 0;
aux->error = dpif_execute(aux->dpif, &execute);
log_execute_message(aux->dpif, &this_module, &execute,
true, aux->error);
We likely also want to address missing test coverage that allowed this
to go unnoticed in 0d9dc8e9ca4a ("dpif-netlink: Provide original upcall
pid in 'execute' commands.").
** Changed in: linux (Ubuntu)
Status: New => Invalid
** Changed in: ovn (Ubuntu)
Status: New => Invalid
** Summary changed:
- [questing][linux-6.17][openvswitch] regression causing system test failures
+ Invalid Netlink PID passed for actions processed by dpif_execute_with_help()
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https://bugs.launchpad.net/bugs/2127061
Title:
Invalid Netlink PID passed for actions processed by
dpif_execute_with_help()
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