kern/58481: panic: kernel diagnostic assertion "so->so_head == NULL" failed: file "/home/netbsd/10/src/sys/kern/uipc_socket.c", line 795

[campbell+netbsd%mumble.net@localhost]

>Number:         58481
>Category:       kern
>Synopsis:       panic: kernel diagnostic assertion "so->so_head == NULL" failed: file "/home/netbsd/10/src/sys/kern/uipc_socket.c", line 795
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jul 28 13:45:00 +0000 2024
>Originator:     Taylor R Campbell
>Release:        10.0_STABLE
>Organization:
The NetBSD Soheadation
>Environment:
NetBSD mollari.NetBSD.org 10.0_STABLE NetBSD 10.0_STABLE (amd64-DOMU_SERVER) #0: Tue May 21 05:29:39 UTC 2024  spz%franklin.NetBSD.org@localhost:/home/netbsd/10/amd64/obj/sys/arch/amd64/compile/amd64-DOMU_SERVER amd64
>Description:
[ 5126269.4643183] panic: kernel diagnostic assertion "so->so_head == NULL" failed: file "/home/netbsd/10/src/sys/kern/uipc_socket.c", line 795
[ 5126269.4643183] cpu0: Begin traceback...
[ 5126269.4743195] vpanic() at netbsd:vpanic+0x177
[ 5126269.4743195] kern_assert() at netbsd:kern_assert+0x4b
[ 5126269.4743195] soabort() at netbsd:soabort+0xa7
[ 5126269.4743195] syn_cache_get() at netbsd:syn_cache_get+0x19a
[ 5126269.4743195] tcp_input() at netbsd:tcp_input+0x6f4
[ 5126269.4743195] ipintr() at netbsd:ipintr+0x928
[ 5126269.4743195] softint_dispatch() at netbsd:softint_dispatch+0xf3
[ 5126269.4743195] DDB lost frame for netbsd:Xsoftintr+0x58, trying 0xffff95822fd81ff0
[ 5126269.4743195] Xsoftintr() at netbsd:Xsoftintr+0x58
[ 5126269.4743195] --- interrupt ---
[ 5126269.4743195] 0:
[ 5126269.4743195] cpu0: End traceback...
[ 5126269.4743195] fatal breakpoint trap in supervisor mode
[ 5126269.4743195] trap type 1 code 0 rip 0xffffffff8022e96d cs 0xe030 rflags 0x202 cr2 0x746024cd2958 ilevel 0x4 rsp 0xffff95822fd81ad0
[ 5126269.4743195] curlwp 0xffff95800f7cb480 pid 0.3 lowest kstack 0xffff95822fd7d2c0
Stopped in pid 0.3 (system) at  netbsd:breakpoint+0x5:  leave

>How-To-Repeat:
no idea
>Fix:
Yes, please!