panic: kernel diagnostic assertion "(rt->rt_flags & RTF_MPATH) || mrt->rt_priority != prio" failed: file "/syzkaller/managers/main/kernel/sys/net/rtable.c", line 569
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*264279  85173      0           0  0x4000000    0  syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f7c399,ffffffff81f3aad6,239,ffffffff81f16fee) at __assert+0x2e sys/kern/subr_prf.c:159
rtable_insert(0,ffff8000009e5040,0,ffff800000a2c890,38,fffffd803b7e9b68) at rtable_insert+0x66b sys/net/rtable.c:569
rtrequest(1,ffff800016a35210,38,ffff800016a35188,0) at rtrequest+0x875 sys/net/route.c:928
rtm_output(ffff800000a2c800,ffff800016a352b8,ffff800016a35210,38,0) at rtm_output+0x6e5 sys/net/rtsock.c:896
route_output(fffffd803f030c00,fffffd803826cc00,0,0) at route_output+0x7d7 sys/net/rtsock.c:814
route_usrreq(fffffd803826cc00,9,fffffd803f030c00,0,0,ffff800016bf9c38) at route_usrreq+0x363 sys/net/rtsock.c:271
sosend(fffffd803826cc00,0,ffff800016a354b0,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513
sendit(ffff800016bf9c38,3,ffff800016a35590,0,ffff800016a356a0) at sendit+0x53c sys/kern/uipc_syscalls.c:662
sys_sendto(ffff800016bf9c38,ffff800016a35638,ffff800016a356a0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527
syscall(ffff800016a35710) at syscall+0x511
Xsyscall(6,0,ffffffffffffffd8,0,6,7937f95d010) at Xsyscall+0x128
end of kernel
end trace frame: 0x79649e06ad0, count: 2
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.