ZBT-2 + OpenThread Border Router crash

[devsnek]

The problem

this happens every night. i had to enable the watchdog to restart it.

1d.00:03:38.571 [W] P-InfraNetif--: failed to send ICMPv6 message: Cannot assign requested address
1d.00:03:38.571 [W] RoutingManager: Failed to send RA on infra netif 2: Failed
otbr-agent: /usr/src/ot-br-posix/src/mdns/mdns.cpp:232: void otbr::Mdns::Publisher::OnServiceResolved(std::string, DiscoveredInstanceInfo): Assertion `aInstanceInfo.mNetifIndex > 0' failed.
1d.00:03:38.694 [C] Platform------: ------------------ BEGINNING OF CRASH -------------
1d.00:03:38.694 [C] Platform------: *** FATAL ERROR: Caught signal: 6 (Aborted)
1d.00:03:38.722 [C] Platform------: # 0: /usr/sbin/otbr-agent(+0x35d824) [0x558686d824]
1d.00:03:38.722 [C] Platform------: # 1: /usr/sbin/otbr-agent(+0x35d964) [0x558686d964]
1d.00:03:38.722 [C] Platform------: # 2: linux-vdso.so.1 __kernel_rt_sigreturn+0x0 [0xa4ba0810]
1d.00:03:38.722 [C] Platform------: # 3: /lib/aarch64-linux-gnu/libc.so.6(+0x87d80) [0x7fa4627d80]
1d.00:03:38.722 [C] Platform------: # 4: /lib/aarch64-linux-gnu/libc.so.6 gsignal+0x20 [0xa45d6940]
1d.00:03:38.722 [C] Platform------: # 5: /lib/aarch64-linux-gnu/libc.so.6 abort+0x2c [0xa45c1a84]
1d.00:03:38.722 [C] Platform------: # 6: /lib/aarch64-linux-gnu/libc.so.6(+0x2f97c) [0x7fa45cf97c]
1d.00:03:38.722 [C] Platform------: # 7: /usr/sbin/otbr-agent otbr::Mdns::Publisher::OnServiceResolved(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, otbr::Mdns::Publisher::DiscoveredInstanceInfo)+0x1fc [0x8673582c]
1d.00:03:38.722 [C] Platform------: # 8: /usr/sbin/otbr-agent otbr::Mdns::Publisher::OnServiceRemoved(unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)+0xac [0x86735aac]
1d.00:03:38.722 [C] Platform------: # 9: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::ServiceSubscription::HandleBrowseResult(_DNSServiceRef_t*, unsigned int, unsigned int, int, char const*, char const*, char const*)+0x1cc [0x8674df2c]
1d.00:03:38.722 [C] Platform------: #10: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::ServiceSubscription::HandleBrowseResult(_DNSServiceRef_t*, unsigned int, unsigned int, int, char const*, char const*, char const*, void*)+0x4c [0x8674dd54]
1d.00:03:38.722 [C] Platform------: #11: /lib/libdns_sd.so(+0x5e4c) [0x7fa4b15e4c]
1d.00:03:38.722 [C] Platform------: #12: /lib/libdns_sd.so DNSServiceProcessResult+0x3b8 [0xa4b14a90]
1d.00:03:38.722 [C] Platform------: #13: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::Process(otbr::MainloopContext const&)+0x25c [0x8674b63c]
1d.00:03:38.722 [C] Platform------: #14: /usr/sbin/otbr-agent otbr::MainloopManager::Process(otbr::MainloopContext const&)+0x68 [0x868a3d24]
1d.00:03:38.723 [C] Platform------: #15: /usr/sbin/otbr-agent otbr::Application::Run()+0x1cc [0x8671dcbc]
1d.00:03:38.723 [C] Platform------: #16: /usr/sbin/otbr-agent(+0x212588) [0x5586722588]
1d.00:03:38.723 [C] Platform------: #17: /usr/sbin/otbr-agent main+0x8c [0x867227d8]
1d.00:03:38.723 [C] Platform------: #18: /lib/aarch64-linux-gnu/libc.so.6(+0x2225c) [0x7fa45c225c]
1d.00:03:38.723 [C] Platform------: #19: /lib/aarch64-linux-gnu/libc.so.6 __libc_start_main+0x9c [0xa45c233c]
1d.00:03:38.723 [C] Platform------: #20: /usr/sbin/otbr-agent _start+0x30 [0x8671d630]
1d.00:03:38.723 [C] Platform------: ------------------ END OF CRASH ------------------

What version of Home Assistant Core has the issue?

core-2026.4.4

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

OpenThread Border Router

Link to integration documentation on our website

https://www.home-assistant.io/integrations/otbr/

Diagnostics information

No response

Example YAML snippet

Anything in the logs that might be useful for us?

Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 88 (Socket operation on non-socket) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 88 (Socket operation on non-socket) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
1d.00:03:38.571 [W] P-InfraNetif--: failed to send ICMPv6 message: Cannot assign requested address
1d.00:03:38.571 [W] RoutingManager: Failed to send RA on infra netif 2: Failed
otbr-agent: /usr/src/ot-br-posix/src/mdns/mdns.cpp:232: void otbr::Mdns::Publisher::OnServiceResolved(std::string, DiscoveredInstanceInfo): Assertion `aInstanceInfo.mNetifIndex > 0' failed.
1d.00:03:38.694 [C] Platform------: ------------------ BEGINNING OF CRASH -------------
1d.00:03:38.694 [C] Platform------: *** FATAL ERROR: Caught signal: 6 (Aborted)
1d.00:03:38.722 [C] Platform------: # 0: /usr/sbin/otbr-agent(+0x35d824) [0x558686d824]
1d.00:03:38.722 [C] Platform------: # 1: /usr/sbin/otbr-agent(+0x35d964) [0x558686d964]
1d.00:03:38.722 [C] Platform------: # 2: linux-vdso.so.1 __kernel_rt_sigreturn+0x0 [0xa4ba0810]
1d.00:03:38.722 [C] Platform------: # 3: /lib/aarch64-linux-gnu/libc.so.6(+0x87d80) [0x7fa4627d80]
1d.00:03:38.722 [C] Platform------: # 4: /lib/aarch64-linux-gnu/libc.so.6 gsignal+0x20 [0xa45d6940]
1d.00:03:38.722 [C] Platform------: # 5: /lib/aarch64-linux-gnu/libc.so.6 abort+0x2c [0xa45c1a84]
1d.00:03:38.722 [C] Platform------: # 6: /lib/aarch64-linux-gnu/libc.so.6(+0x2f97c) [0x7fa45cf97c]
1d.00:03:38.722 [C] Platform------: # 7: /usr/sbin/otbr-agent otbr::Mdns::Publisher::OnServiceResolved(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, otbr::Mdns::Publisher::DiscoveredInstanceInfo)+0x1fc [0x8673582c]
1d.00:03:38.722 [C] Platform------: # 8: /usr/sbin/otbr-agent otbr::Mdns::Publisher::OnServiceRemoved(unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)+0xac [0x86735aac]
1d.00:03:38.722 [C] Platform------: # 9: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::ServiceSubscription::HandleBrowseResult(_DNSServiceRef_t*, unsigned int, unsigned int, int, char const*, char const*, char const*)+0x1cc [0x8674df2c]
1d.00:03:38.722 [C] Platform------: #10: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::ServiceSubscription::HandleBrowseResult(_DNSServiceRef_t*, unsigned int, unsigned int, int, char const*, char const*, char const*, void*)+0x4c [0x8674dd54]
1d.00:03:38.722 [C] Platform------: #11: /lib/libdns_sd.so(+0x5e4c) [0x7fa4b15e4c]
1d.00:03:38.722 [C] Platform------: #12: /lib/libdns_sd.so DNSServiceProcessResult+0x3b8 [0xa4b14a90]
1d.00:03:38.722 [C] Platform------: #13: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::Process(otbr::MainloopContext const&)+0x25c [0x8674b63c]
1d.00:03:38.722 [C] Platform------: #14: /usr/sbin/otbr-agent otbr::MainloopManager::Process(otbr::MainloopContext const&)+0x68 [0x868a3d24]
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 9 (Bad file descriptor) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 88 (Socket operation on non-socket) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 88 (Socket operation on non-socket) sending packet to ff02::fb on interface 192.168.2.243/<<NULL>>/4
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::3c17:4cff:fe61:25fc/veth9366ec0/17
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::4823:2eff:fea5:8bc6/vethb99d6e5/18
1d.00:03:38.571 [W] P-InfraNetif--: failed to send ICMPv6 message: Cannot assign requested address
1d.00:03:38.571 [W] RoutingManager: Failed to send RA on infra netif 2: Failed
otbr-agent: /usr/src/ot-br-posix/src/mdns/mdns.cpp:232: void otbr::Mdns::Publisher::OnServiceResolved(std::string, DiscoveredInstanceInfo): Assertion `aInstanceInfo.mNetifIndex > 0' failed.
1d.00:03:38.694 [C] Platform------: ------------------ BEGINNING OF CRASH -------------
1d.00:03:38.694 [C] Platform------: *** FATAL ERROR: Caught signal: 6 (Aborted)
1d.00:03:38.722 [C] Platform------: # 0: /usr/sbin/otbr-agent(+0x35d824) [0x558686d824]
1d.00:03:38.722 [C] Platform------: # 1: /usr/sbin/otbr-agent(+0x35d964) [0x558686d964]
1d.00:03:38.722 [C] Platform------: # 2: linux-vdso.so.1 __kernel_rt_sigreturn+0x0 [0xa4ba0810]
1d.00:03:38.722 [C] Platform------: # 3: /lib/aarch64-linux-gnu/libc.so.6(+0x87d80) [0x7fa4627d80]
1d.00:03:38.722 [C] Platform------: # 4: /lib/aarch64-linux-gnu/libc.so.6 gsignal+0x20 [0xa45d6940]
1d.00:03:38.722 [C] Platform------: # 5: /lib/aarch64-linux-gnu/libc.so.6 abort+0x2c [0xa45c1a84]
1d.00:03:38.722 [C] Platform------: # 6: /lib/aarch64-linux-gnu/libc.so.6(+0x2f97c) [0x7fa45cf97c]
1d.00:03:38.722 [C] Platform------: # 7: /usr/sbin/otbr-agent otbr::Mdns::Publisher::OnServiceResolved(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, otbr::Mdns::Publisher::DiscoveredInstanceInfo)+0x1fc [0x8673582c]
1d.00:03:38.722 [C] Platform------: # 8: /usr/sbin/otbr-agent otbr::Mdns::Publisher::OnServiceRemoved(unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)+0xac [0x86735aac]
1d.00:03:38.722 [C] Platform------: # 9: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::ServiceSubscription::HandleBrowseResult(_DNSServiceRef_t*, unsigned int, unsigned int, int, char const*, char const*, char const*)+0x1cc [0x8674df2c]
1d.00:03:38.722 [C] Platform------: #10: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::ServiceSubscription::HandleBrowseResult(_DNSServiceRef_t*, unsigned int, unsigned int, int, char const*, char const*, char const*, void*)+0x4c [0x8674dd54]
1d.00:03:38.722 [C] Platform------: #11: /lib/libdns_sd.so(+0x5e4c) [0x7fa4b15e4c]
1d.00:03:38.722 [C] Platform------: #12: /lib/libdns_sd.so DNSServiceProcessResult+0x3b8 [0xa4b14a90]
1d.00:03:38.722 [C] Platform------: #13: /usr/sbin/otbr-agent otbr::Mdns::PublisherMDnsSd::Process(otbr::MainloopContext const&)+0x25c [0x8674b63c]
1d.00:03:38.722 [C] Platform------: #14: /usr/sbin/otbr-agent otbr::MainloopManager::Process(otbr::MainloopContext const&)+0x68 [0x868a3d24]
1d.00:03:38.723 [C] Platform------: #15: /usr/sbin/otbr-agent otbr::Application::Run()+0x1cc [0x8671dcbc]
1d.00:03:38.723 [C] Platform------: #16: /usr/sbin/otbr-agent(+0x212588) [0x5586722588]
1d.00:03:38.723 [C] Platform------: #17: /usr/sbin/otbr-agent main+0x8c [0x867227d8]
1d.00:03:38.723 [C] Platform------: #18: /lib/aarch64-linux-gnu/libc.so.6(+0x2225c) [0x7fa45c225c]
1d.00:03:38.723 [C] Platform------: #19: /lib/aarch64-linux-gnu/libc.so.6 __libc_start_main+0x9c [0xa45c233c]
1d.00:03:38.723 [C] Platform------: #20: /usr/sbin/otbr-agent _start+0x30 [0x8671d630]
1d.00:03:38.723 [C] Platform------: ------------------ END OF CRASH ------------------
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::9d71:1dc:d81:e9af/end0/2
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::8f12:496e:743f:5b85/end0.2/4
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::8f12:496e:743f:5b85/end0.2/4
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::9d71:1dc:d81:e9af/end0/2
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::8f12:496e:743f:5b85/end0.2/4
[08:29:12] WARNING: otbr-agent exited with code 134 (by signal 6).
Chain OTBR_FORWARD_INGRESS (0 references)
target     prot opt source               destination         
DROP       all  --  anywhere             anywhere             PKTTYPE = unicast
DROP       all  --  anywhere             anywhere             match-set otbr-ingress-deny-src src
ACCEPT     all  --  anywhere             anywhere             match-set otbr-ingress-allow-dst dst
DROP       all  --  anywhere             anywhere             PKTTYPE = unicast
ACCEPT     all  --  anywhere             anywhere            
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::9d71:1dc:d81:e9af/end0/2
Default: mDNSPlatformSendUDP got error 99 (Cannot assign requested address) sending packet to ff02::fb on interface fe80::8f12:496e:743f:5b85/end0.2/4
otbr-ingress-deny-src
otbr-ingress-deny-src-swap
otbr-ingress-allow-dst
otbr-ingress-allow-dst-swap
Chain OTBR_FORWARD_EGRESS (0 references)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            
[08:29:12] INFO: OTBR firewall/NAT64 rules teardown completed.
s6-rc: info: service legacy-services: stopping
s6-rc: info: service legacy-services successfully stopped
s6-rc: info: service otbr-agent-rest-discovery: stopping
s6-rc: info: service otbr-agent-rest-discovery successfully stopped
s6-rc: info: service otbr-agent-configure: stopping
s6-rc: info: service otbr-agent-configure successfully stopped
s6-rc: info: service otbr-agent: stopping
s6-rc: info: service otbr-agent successfully stopped
s6-rc: info: service legacy-cont-init: stopping
s6-rc: info: service banner: stopping
s6-rc: info: service mdns: stopping
Default: mDNSResponder (Engineering Build) (Apr 10 2026 12:15:35) stopping
s6-rc: info: service banner successfully stopped
s6-rc: info: service legacy-cont-init successfully stopped
s6-rc: info: service fix-attrs: stopping
s6-rc: info: service fix-attrs successfully stopped
s6-rc: warning: service s6rc-oneshot-runner is marked as essential, not stopping it

Additional information

No response

[home-assistant]

Hey there @home-assistant/core, mind taking a look at this issue as it has been labeled with an integration (otbr) you are listed as a code owner for? Thanks!

Code owner commands

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• @home-assistant close Closes the issue.
• @home-assistant rename Awesome new title Renames the issue.
• @home-assistant reopen Reopen the issue.
• @home-assistant unassign otbr Removes the current integration label and assignees on the issue, add the integration domain after the command.
• @home-assistant add-label needs-more-information Add a label (needs-more-information, problem in dependency, problem in custom component, problem in config, problem in device, feature-request) to the issue.
• @home-assistant remove-label needs-more-information Remove a label (needs-more-information, problem in dependency, problem in custom component, problem in config, problem in device, feature-request) on the issue.

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@devsnek Thanks for reporting this issue!

Before we dive in, please make sure this isn't a duplicate by searching through existing issues. Also check recently closed issues, as your problem might already be fixed but not yet released.

https://github.com/home-assistant/core/issues?q=%20label%3A%22integration%3A%20otbr%22%20
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otbr documentation
otbr source
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